[EnB] 100 Mock MCQ Questions on Science Tech, Environment and Biodiversity

Science255 Comments

LaxmikanthEthics
  1. Instructions
  2. Question 1 to 20
  3. Question 21 to 40
  4. Question 41 to 60
  5. Question 61 to 80
  6. Question 81 to 100
  7. Answers

Instructions

  • 100 questions worth 2 marks each = total 200 marks.
  • Penalty for wrong answer= Minus 0.67 (=1/3rd of the mark allotted to correct answer.)
  • time limit 2 hours
  • If you cannot solve some of these question, don’t get demotivated. In UPSC there will be always some question from outside of what you’ve prepared, but you’re not required to tick 100/100 to crack prelims.

Question 1 to 20

  1. Which of the following concepts can be used to study the rate of acceleration of the Universe?
  1. Supernovae Explosions.
  2. Dark Matter.
  3. Dark Energy.
  4. Black Holes.
  1. 1 & 3 only.
  2. 1 & 2 only.
  3. 2, 3 & 4 only.
  4. 1, 3 & 4 only.
  1. Which of the following can be a trigger for Coral Bleaching?
  1. Increase in ocean temperature.
  2. Decrease in ocean temperature.
  3. Decline in Zooplankton levels.
  4. Changes in salinity.
  5. Elevated sea levels due to global warming.
  1. All except 2.
  2. All except 2 & 4.
  3. All except 5.
  4. None of the above options are correct.
  1. The Basel Convention on the Control of Trans boundary Movements of Hazardous Wastes and Their Disposal, usually known as the Basel Convention:
  1. It is an international treaty that was designed to reduce the movements of hazardous wastes from developed to less developed countries.
  2. It does not address the movement of radioactive waste.
  1. 1 only.
  2. 2 only.
  3. Both.
  4. None.
  1. Which of the following statements are correct with regard to Red tide – a term used to describe Harmful Algal Blooms (HABs) in marine coastal areas.
  1. These blooms are not associated with tides.
  2. HABs tint the seawater to a reddish color.
  3. Not all algal blooms are harmful, even those involving red discoloration.
  1. 1 & 3 only.
  2. 1 & 2 only.
  3. 2 & 3 only.
  4. 1, 2 & 3.
  1. Which of the following statements is/are correct:
  1. Ozone Depletion causes reduction in stratospheric and upper tropospheric temperatures.
  2. Increase in Green House Gases causes reduction in stratospheric and upper tropospheric temperatures.
  1. 1 only.
  2. 2 only.
  3. Both.
  4. None.
  1. Which of the following statements is/are correct with regard to Ozone Depletion:
  1. Ozone hole is measured in terms of ozone concentrations, which is expressed in Dobson units.
  2. The major cause for Ozone Depletion is the presence of CFCs in stratosphere – CFCs are entirely man made and not found naturally.
  1. 1 only.
  2. 2 only.
  3. Both.
  4. None.
  1. Which of the following statements is/are correct with regard to Vitamin D:
  1. Vitamin D is produced in the skin by ultraviolet light.
  2. Higher levels of Vitamin D are associated with higher morbidity.
  3. Body has no mechanism to prevent sunlight from producing too much Vitamin D.
  1. 1 & 3 only.
  2. 1 & 2 only.
  3. 2 & 3 only.
  4. 1, 2 & 3.
  1. If the Arctic Ice was somehow replaced with dense forest, which of the following situation may arise:
  1. It will accelerate Global Warming.
  2. It will decelerate Global Warming.
  3. It may or may not affect Global warming.
  4. It will have no affect on Global Warming.
  1. Recently Chinese scientists have developed Carbon Aerogel. Which of the following is/are correct about it:
  1. It is the second lightest material after Graphite aerogel.
  2. It has excellent elasticity.
  3. It is expected to play an important role in pollution control.
  4. It is expected to become ideal material for sound absorption.
  1. 2, 3 & 4 only.
  2. 2 & 4 only.
  3. 1 & 3 only.
  4. 1, 2, 3 & 4.
  1. Lantana – know as Phool Lakhri in local parlance is a shrub found in abundance in Himachal Pradesh. Which of the following statements are correct about it?
  1. It is a toxic weed and has affected the mountain diversity of the state.
  2. Lantana species are widely cultivated for their flowers.
  3. It is endemic to India.
  4. It is considered as potential fire hazard and it is combustible even when green.
  1. 1, 2 & 4 only.
  2. 2 & 4 only.
  3. 1 & 3 only.
  4. 1, 2, 3 & 4.
  1. Which of the following statements are correct about C & Ku Band that are used for satellite communications transmissions:
  1. The frequency of Ku Band is greater than C band.
  2. C band performs better under adverse weather conditions in comparison to Ku band.
  3. C band has a higher likelihood of terrestrial interference in comparison to Ku Band.
  1. 1, 2 & 3.
  2. 1 & 2 only.
  3. 1 & 3 only.
  4. 2 & 3 only.
  1. Which of the following statements are true regarding Soda Lake:
  1. Soda lakes are highly acidic lakes.
  2. Soda lakes are highly productive ecosystems.
  3. A critical geological condition for the formation of Soda Lake is the absence of soluble calcium or magnesium.
  4. Lonar and Sambhar lakes are examples of Soda lakes in India.
  1. 1, 2 & 3 only.
  2. 1 & 4 only.
  3. 2, 3 & 4 only.
  4. 3 & 4 only.
  1. Which of the following is/are the Industrial uses of Hydraulic Fracturing:
  1. Arousing production from oil and gas wells.
  2. To dispose of waste by injection into deep rock formations.
  3. As a method to measure the stress in the Earth.
  1. 1, 2 & 3.
  2. 1 only.
  3. 1 & 3 only.
  4. 2 & 3 only.
  1. Plasma arc technology is used for the disposal of waste, which of the following statements is/are correct with regard to this technology:
  1. It can be used for the disposal of hazardous and radioactive waste.
  2. Oxides of Sulphur and Nitrogen are the polluting gases produced in this process.
  3. This technology has not been tried anywhere in India.
  1. 1, 2 & 3.
  2. 1 & 2 only.
  3. 1 & 3 only.
  4. 3 only.
  1. What do you understand by the term ‘Dark Fermentation’:
  1. It is a method to reduce CO2 in the atmosphere.
  2. It is a method to produce Hydrogen as fuel from wastewater.
  3. It is a method to dispose nuclear wastes.
  4. It is a method to produce methane from organic waste.
  1. Which of the following statements are correct with regard to Hepatitis (A, B, C, D & E):
  1. Hepatitis is the inflation of Liver due to viral infection.
  2. Hepatitis B vaccine is enough to keep type D at bay.
  3. Type B & C are mainly transmitted through blood transfusion.
  4. Type A & E are caused due to exposure to polluted food and water.
  1. 1, 2 & 3 only.
  2. 1, 3 & 4 only.
  3. 2 & 4 only.
  4. 1, 2, 3 & 4 only.
  1. Which of the following functions are performed by the Liver:
  1. Plays a role in immunity.
  2. Helps in processing nutrients.
  3. Helps in maintaining bloods clotting capacity.
  4. Helps in purifying blood.
  1. 1, 2 & 3 only.
  2. 2, 3 & 4 only.
  3. 1 & 4 only.
  4. 1, 2, 3 & 4.
  1. Which of the following statements is/are correct with regard to Carbon Monoxide:
  1. It is produced in the human body.
  2. It helps in treating sickle cell anemia.
  3. It acts as a neurotransmitter.
  1. 1, 2 & 3.
  2. 1 only.
  3. 1 & 3 only.
  4. 2 & 3 only.
  1. Assertion: Viral Pneumonia does not require intensive care and treatment.

Reason: Viruses don’t respond to vaccines and antibiotics.

  1. Assertion & Reason both are correct and Reason is the correct explanation.
  2. Assertion is wrong but reason is correct.
  3. Assertion is correct but reason is wrong.
  4. Both Assertion & reason are correct but reason is not the correct explanation of reason.
  1. Which of the following statements is/are correct with regard to mobile touch screen technologies.
  1. When a user touches a capacitive touch screen some charge is transferred to the user from the screen.
  2. Capacitive touch screen technology has more life than resistive touch screen technology.
  3. Capacitive screens provide clearer image than resistive screens.
  1. 1, 2 & 3.
  2. 1 only.
  3. 1 & 3 only.
  4. 2 & 3 only.

Question 21 to 40

  1. The Rajasthan university of veterinary and animal sciences has set up a Emu breeding farm and is promoting Emu breeding in the state because:
  1. Emu meat has much lower fat compared to chicken, mutton, pork or turkey, & low in cholesterol, hence good for heart patients.
  2. Emu oil can be used to cure arthritis and joint pains.
  3. Emu oil is an analgesic, antiseptic and anti allergic.
  4. Emu oil is used in cosmetic products.
  5. Feathers are used to make artifacts & decorative items.
  6. Emu egg is a great nutritional supplement as one egg can feed an entire family.
  1. All except 3, 4 & 6.
  2. All except 3 & 4.
  3. All except 3.
  4. None of the above options are correct.
  1. A new vertical single bud technique has been implemented in some areas of Punjab for sugar cane cultivation. Which of the following statements are true with regard to this technique:
  1. This technique requires 85% fewer seeds than traditional method for the same field size.
  2. It reduces water consumption by 50 %.
  3. The yield is almost doubled.
  1. 1, 2 & 3.
  2. 1 only.
  3. 1 & 3 only.
  4. 2 & 3 only.
  1. Which of the following species are critically endangered:
  1. White bellied heron.
  2. Gangetic Dolphins.
  3. River Terrapins.
  1. 1, 2 & 3.
  2. 2 only.
  3. 1 & 3 only.
  4. 2 & 3 only.
  1. Which of the following statements are correct with regard to Siddha form of medicinal system:
  1. Siddha form of medicinal system is usually practiced in South India.
  2. Siddha is believed to be the oldest medicinal system in the world.
  1. 1 only.
  2. 2 only.
  3. Both.
  4. None.
  1. Which of the following statements is/are correct with regard to Siddha & Unani form of medicinal systems:
  1. Siddha system is based on the premise that only a healthy body can help develop a healthy soul.
  2. According to Unani medicine, management of any disease depends upon the diagnosis of disease.
  1. 1 only.
  2. 2 only.
  3. Both.
  4. None.
  1. Which of the following statements is/are correct with regard to Ayurveda form of medicinal systems:
  1. Hygiene is a central practice of Ayurveda medicine.
  2. According to Ayurveda suppressing natural urges is seen to be unhealthy, and doing so claimed to lead to illness.
  3. Ayurveda is related to the Vedic period in India.
  1. 1 only.
  2. 1 & 2 only.
  3. 2 & 3 only.
  4. 1, 2 & 3.
  1. Which of the following statements is/are correct with regard to Homeopathy form of medicinal systems:
  1. According to homeopathy a substance that causes the symptoms of a disease in healthy people will cure similar symptoms in sick people.
  2. Scientific community regards homeopathy as a sham.
  1. 1 only.
  2. 2 only.
  3. Both.
  4. None.
  1. Which of the following statements is/are correct with regard to Naturopathy:
  1. According to Naturopathy – Food is the only medicine hence no external medications are used.
  2. Performing prayer according to one’s spiritual faith is an important part of treatment.
  3. The treatment of all diseases is elimination of morbid matter from the body.
  1. 1 only.
  2. 1 & 2 only.
  3. 2 & 3 only.
  4. 1, 2 & 3.
  1. Which of the following statements is/are correct with regard to Sowa Rigpa medicinal system:
  1. This system is popular in the Himalayan region of India.
  2. It is similar to Ayurveda.
  3. It is believed that Buddha himself taught it.
  4. It includes few principles of Traditional Chinese medicinal systems.
  1. 1 & 4 only.
  2. 2 & 3 only.
  3. 1, 2 & 3 only.
  4. 1, 2, 3 & 4.
  1. Match the following: Mundane question. But one can expect at least one such question in any paper.
  1. National Institute of Homeopathy.
  2. National Institute of Siddha.
  3. National Institute of Unani Medicine.
  4. National Institute of Naturopathy.
  5. National Institute of Ayurveda.
  1. Chennai.
  2. Kolkata.
  3. Pune.
  4. Jaipur.
  5. Bengaluru.
  1. 1 – a, 2 – b, 3 – c, 4 – d, 5 – e.
  2. 1 – b, 2 – a, 3 – e, 4 – c, 5 – d.
  3. 1 – e, 2 – d, 3 – c, 4 – b, 5 – a.
  4. 1 – b, 2 – a, 3 – c, 4 – e, 5 – d.
  1. Which of the following are the potential benefits of Nuclear fusion reactors:
  1. Enough readily available fuel to last more than millions of years.
  2. No Green House gas emissions.
  3. Plants will produce more readily controllable nuclear wastes.
  4. Deuterium and Lithium can be used as potential fuels.
  1. 1, 2 & 3 only.
  2. 2, 3 & 4 only.
  3. 1 & 4 only.
  4. 1, 2, 3 & 4 only.
  1. Which of the following statements is/are correct about syngas:
  1. It is a mixture of carbon monoxide and hydrogen.
  2. It can easily be converted into gasoline through a process called steam reforming.
  3. It is easily storable.
  4. It is combustible and can be used as fuel in Internal combustion engines.
  5. Syngas has almost double the energy density of natural gas.
  1. All except 4.
  2. All except 5.
  3. All except 1 & 5.
  4. None of the above options are correct.
  1. Which of the following are the objectives of Mars Orbiter Mission scheduled to be launched by India in mid November this year:
  1. Detect Methane in the atmosphere of Mars.
  2. Map the surface composition of Mars.
  3. Measure atomic hydrogen in the atmosphere of Mars.
  4. Understand Martian dust storms.
  1. 1, 2 & 3 only.
  2. 2, 3 & 4 only.
  3. 1 & 4 only.
  4. 1, 2, 3 & 4 only.
  1. Which of the following statements with regard to two solar events – Solar Flare and Coronal Mass Ejection are correct:
  1. Coronal Mass Ejection (CME) can cause serious problems for electrical systems on Earth.
  2. Solar flares have no effect on terrestrial life.
  3. All CMEs are accompanied by solar flares.
  4. The Northern and Southern Lights (aurora borealis and aurora australis) are often associated with coronal mass ejections.
  5. Both solar flares and coronal mass ejections are the result of magnetic activity on the sun.
  1. All except 2 & 5.
  2. All except 2 & 3.
  3. All except 3.
  4. All the statements are wrong.
  1. Which of the following statements is/are correct about Lagrange point in the context of space terminology:
  1. Lagrange points are locations in space where gravitational forces and the orbital motion of a body balance each other.
  2. Lagrange points are locations in space where net force due to gravity is zero.
  3. There are five Lagrangian points in the Sun-Earth system.
  4. No such points exist in the Earth-Moon system.
  1. 2 & 3 only.
  2. 1, 3 & 4 only.
  3. 2, 3 & 4 only.
  4. 1 & 4 only.
  1. Which of the following statements is/are correct about Dark Matter:
  1. Dark matter does not interact with any electromagnetic radiation.
  2. Dark matter interacts with ordinary matter through gravity only.
  3. The force between dark matter and ordinary matter is repulsive.
  1. 1 only.
  2. 1 & 2 only.
  3. 2 & 3 only.
  4. 1, 2 & 3.
  1. Consider the following statements with regard to Thorium based nuclear power plants:

Assertion: Thorium cannot be used directly to produce nuclear energy.

Reason: Thorium does not contain any fissile material.

  1. Assertion & Reason both are correct and Reason is the correct explanation.
  2. Assertion & Reason both are correct but reason is not the correct explanation.
  3. Assertion is wrong, Reason is correct.
  4. Assertion is correct, reason is wrong.
  1. Which of the following Cyber attacks is related to India:
  1. Stuxnet.
  2. Flame.
  3. Titan Rain.
  4. GhostNet.
  1. To increase yield, the cows are injected with Oxytocin, a hormone banned in India under the Prevention of Cruelty to Animals Act and section 12 of Food and Drug Adulteration Prevention Act, 1960. Why is this hormone banned?
  1. Milk produced from such cows is unfit/harmful for human consumption.
  2. Cows injected with Oxytocin have a greater incidence of abortions, mastitis and lower conception rates.
  3. Calves born to Oxytocin injected cows suffer higher than normal infant mortality and delayed puberty.
  1. 1 only.
  2. 1 & 2 only.
  3. 2 & 3 only.
  4. 1, 2 & 3.
  1. Which of the following statements is/are correct with regard to the Solar cell technologies:
  1. Crystalline silicon solar cells have a greater market share than thin film solar cells.
  2. Thin film solar cells are cheaper than crystalline silicon solar cells.
  3. Crystalline silicon cells are more efficient than thin film solar cells.
  4. Both the technology operates on the same photovoltaic principle.
  5. Crystalline silicon solar cells are more environmental friendly to dispose than thin film solar cells at the end of their respective lives.
  1. All except 2 & 5.
  2. All except 2 & 3.
  3. All except 3.
  4. All the above options are wrong.

Question 41 to 60

  1. According to Western Ghats Ecological Expert Panel report – Ecologically Sensitive Areas are:
  1. Ecologically important.
  2. Economically important.
  3. Vulnerable to even mild disturbances.
  1. 1 only.
  2. 1 & 3 only.
  3. 3 only.
  4. 1, 2 & 3.
  1. Which of the following types of Coral Reefs are found in India:
  1. Atoll.
  2. Fringing.
  3. Barrier.
  1. 1 & 2 only.
  2. 1 & 3 only.
  3. 2 & 3 only.
  4. 1, 2 & 3.
  1. The union Ministry of Environment & Forest has introduced a new scheme called the ‘Emissions Trading Scheme’ which of the following statements is/are correct with regard to this scheme:
  1. This is a market-based scheme to reduce air pollution.
  2. It has been implemented only in 3 states till now.
  3. The scheme allows the Pollution control boards to set a cap on the level of pollution permitted in an industrial area, and then allows the industries to self regulate to ensure that pollution does not exceed this cap.
  4. This scheme is the first of its kind in the world.
  1. 1, 2, 3 & 4.
  2. 1 & 3 only.
  3. 2 & 3 only.
  4. 1, 2 & 3.
  1. Which of the following species is locally extinct in India:
  1. White bellied heron.
  2. Siberian Crane.
  3. The gyps Vulture.
  4. Forest owlet.

A.   1, 2 & 4 only.

B.   1 & 2 only.

C.    2 only.

D.   1, 3 & 4 only.

  1. Desertification can lead to:
  1. Decrease in food supplies.
  2. Decrease in water supplies.
  3. Migration.
  4. Loss of jobs.
  5. Global warming.
  1. All except 4 & 5.
  2. All except 5.
  3. All except 4.
  4. All the above options are wrong.
  1. Which of the following is true with regard to regulation of GM crops in India:
  1. At present GM crops are regulated under the purview of the Union Ministry of Agriculture.
  2. Ministry of Environment and forest has introduced a new bill to set up a new regulatory system for GM crops by the name Biotechnology Regulatory Authority of India (BRAI).
  3. The Bill proposes setting up BRAI under the Ministry of Science and Technology.
  4. BRAI will act as a single window clearance system for products of modern biotechnology, including GM crops.
  1. 1, 2 & 4 only.
  2. 1, 2 & 3 only.
  3. 1, 3 & 4 only.
  4. 3 & 4 only.
  1. Pyrolysis/Gasification is a process of chemical decomposition of Organic matter through heat. The organic matter is heated in the absence of air till it breaks down to smaller molecules of gas. The gas is known as Producer Gas – Constituents of this gas are:
  1. Carbon Di oxide.
  2. Carbon mono oxide.
  3. Nitrogen.
  4. Hydrogen.
  5. Sulphur di oxide.
  6. Ammonia.
  1. All except 5.
  2. All except 6.
  3. All except 5 & 6.
  4. All the above options are wrong.
  1. Landfill Gas Recovery is a measure of recovering gas from waste dumps wherein the waste slowly decomposes to produce ‘Landfill gas’.  Which of the following statements are correct.
  1. This gas consists of high percentage of methane.
  2. Has a high calorific value.
  3. Cannot be used for generating power.
  1. 1 & 2 only.
  2. 1 & 3 only.
  3. 2 & 3 only.
  4. 1, 2 & 3 only.
  1. Consider the following statements:
  1. Refineries and Fertilizer plants are the major consumers of Hydrogen gas.
  2. Refineries and Fertilizer plants are the major producers of Hydrogen gas.

The correct statements is/are:

  1. 1 only.
  2. 2 only.
  3. Both.
  4. None.
  1. Hydrogen is being projected as the fuel for future. Which of the following processes are used to produce Hydrogen:
  1. Steam Methane Reformation.
  2. Gasification of Coal.
  3. Gasification of biomass.
  4. Electrolytic process – using electricity to produce hydrogen.
  5. Photolytic process – using sunlight to produce hydrogen.
  1. All except 1.
  2. All except 2.
  3. All except 1 & 2.
  4. All the above options are wrong.
  1. Which of the following are potential reasons for decline of house sparrow:
  1. Severe changes in urban ecosystem.
  2. Radiations from mobile tower.
  3. Excessive use of chemical fertilizers.
  4. Poaching.
  1. 1 & 4 only.
  2. 1, 2 & 3 only.
  3. 1 & 2 only.
  4. 1, 2, 3 & 4.
  1. The riverbank between the Tungabhadra reservoir and Kampli has been identified as ‘Protected area’ for Otters. Which of the following are true about Otters.
  1. Otters are listed as endangered in the IUCN Red list of threatened species.
  2. Otters are hunted for their fur.
  1. 1 only.
  2. 2 only.
  3. Both.
  4. None.
  1. Consider the following lakes in J&K.
  1. Hokersar.
  2. Tsomoriri.
  3. Mansar.
  4. Surinsar.

Which of these lakes are listed under the Ramsar convention.

  1. All except 2.
  2. All except 3.
  3. All except 4.
  4. None of the above options are correct.
  1. The Montreux Record is a register of wetland sites on the List of Wetlands of International Importance where changes in ecological character have occurred, are occurring, or are likely to occur as a result of technological developments, pollution or other human interference. It is maintained as part of the Ramsar List. Which of the following lakes from India are included in the Montreux record.
  1. Loktak Lake.
  2. Chilka Lake.
  3. Wullar Lake.
  1. 1 only.
  2. 1 & 2 only.
  3. 2 & 3 only.
  4. 1, 2 & 3 only.
  1. Which of the following statements are correct according to the India State of Forest Report 2011 – Published by Forest Survey of India.
  1. There has been a net decrease in the forest cover of hill districts of India in comparison to previous assessment.
  2. There has been a net decrease in the forest cover of tribal districts of India in comparison to previous assessment.
  3. There has been a net decrease in the forest cover of North Eastern states of India in comparison to previous assessment.
  4. There has been a net decrease in the Mangrove cover in comparison to previous assessment.
  5. There has been a net decrease in the forest cover of India in comparison to previous assessment
  1. All except 2.
  2. All except 3.
  3. All except 4.
  4. None of the above options are correct.
  1. The Union Ministry of Environment and Forest has suggested species recovery action plans in the State to save – Great Indian Bustard, Lesser Florican and Bengal Florican. Which of the following statements with regard to these three birds are correct.
  1. All these 3 birds are critically endangered according to IUCN Red list.
  2. Lesser Florican is mostly found in the Western part of India whereas Bengal Florican is found in the Eastern part of India.
  3. All the three birds belong to the Bustard family.
  1. 1 & 2 only.
  2. 1 & 3 only.
  3. 2 & 3 only.
  4. 1, 2 & 3 only.
  1. Consider the following four birds.
  1. Great Indian Bustard.
  2. Lesser Florican.
  3. Bengal Florican.
  4. Houbara Bustard.

Consider the following statements with regard to these four birds.

  1. Out of these four birds exactly two are listed as critically endangered according to IUCN Red list.
  2. Out of these four birds exactly one is listed as vulnerable according to IUCN Red list.
  3. Out of these four birds exactly one bird is listed as threatened according to IUCN Red list.

Which of the above statements are correct.

  1. 1 only.
  2. 3 only.
  3. 1, 2 & 3.
  4. 1 & 3 only.
  1. Forest Rights Act recognizes the rights of forest dwellers over forestland and forest resources such as minor forest produce they have traditionally been extracting and using.  Which of the following statements is/are correct with regard to this Act.
  1. Forest dwellers can transport minor forest produce by any appropriate means of transport.
  2. A committee set up by Gram Sabha issues transit passes for transporting minor forest produce.
  1. 1 only.
  2. 2 only.
  3. Both.
  4. None.
  1. Consider the following:
  1. 2012 was the 40h anniversary of Stockholm conference.
  2. 2012 was the 25th anniversary of Montreal protocol.
  3. 2012 was the 20th anniversary of Rio Earth Summit.
  4. 2012 was the 10th anniversary of World sustainable summit.

Which of the above statements are correct.

  1. 2 & 4 only.
  2. 1, 2 & 3 only.
  3. 1, 2, 3 & 4.
  4. 3 & 4 only.
  1. Which of the following Ozone depleting substances have been completely phased out (Both production and consumption) from India:
  1. CFCs.
  2. CTC.
  3. Halons.
  4. Methyl Bromides.
  5. HCFCs.
  1. All except 4 & 5.
  2. All except 5.
  3. All except 2, 3, 4 & 5.
  4. None of the above options are correct.

Question 61 to 80

  1. Indian firm Godrej claims to be the first company in the world to have started making and selling air conditioners that do not use HFCs. Which of the following statements with regard to HFCs (Hydroflorocarbon) are correct:
  1. HFCs have replaced CFCs and HCFCs as coolant for refrigerators.
  2. HFCs pose no harm to the ozone layer.
  3. HFCs are potent Green house gases.
  4. HFCs are generated during the manufacturing of HCFCs.
  1. 2 & 4 only.
  2. 1, 2 & 3 only.
  3. 1, 2, 3 & 4.
  4. 3 & 4 only.
  1. The targets for the first commitment period of the Kyoto Protocol cover emissions of the six main greenhouse gases, which of the following gas is NOT one of these:
  1. Carbontetrachloride (CTC)
  2. Hydrofluorocarbons (HFCs)
  3. Perfluorocarbons (PFCs)
  4. Sulphur hexafluoride (SF6)
  1. The Himalayan Yew Tree in the Himalayan region that has cancer curing properties is facing near extinction. The reason for this is:
  1. A widespread attack of fungus on these trees.
  2. Introduction of other invasive species.
  3. Over exploitation.
  4. Construction of new dams that has led to submersion of vast areas.
  1. Consider the following lakes:
  1. Sasthamkotta Lake.
  2. Vembanad Lake.
  3. Ashtamudi Lake.
  4. Vellayani Lake.

Which if the following statements are correct:

  1. All these lakes are located in Kerala.
  2. Exactly three lakes are located in Kerala.
  3. All these lakes are Ramsar sites.
  4. Exactly three lakes are Ramsar sites.
  1. 1 & 4 only.
  2. 2 & 3 only.
  3. 1 & 3 only.
  4. 2 & 4 only.
  1. Boron is an essential micronutrient for crops. Which of the following are the functions of Boron in crops:
  1. Facilitates pollination.
  2. Aids in translocation of sugar and carbohydrates.
  3. It plays an important role in the proper function of cell membranes.
  4. Helps in Nitrogen fixation.
  5. Aids in photosynthesis.
  1. All except 4 & 5.
  2. All except 5.
  3. All except 3, 4 & 5.
  4. None of the above options are correct.
  1. Which of the following can accelerate global warming:
  1. Rice cultivation.
  2. Cattle breeding.
  3. Melting of permafrost in the Arctic region.
  1. 1 & 3 only.
  2. 1 & 2 only.
  3. 2 & 3 only.
  4. 1, 2 & 3.
  1. Which of the following statements are correct:
  1. Indian high temperature Reactor (IHTR) will be installed in remote areas and will require refueling only once in 15 years.
  2. Compact high temperature reactor (CHTR) will generate hydrogen.
  3. Advanced heavy water reactor (AHWR) will generate electricity from thorium.
  1. 1 & 3 only.
  2. 1 & 2 only.
  3. 2 & 3
  4. 1, 2 & 3.
  1. Under the Integrated Nutrient Management (INM), Mycorrhiza is an indispensable agricultural input. Mycorrhiza is a symbiotic association of fungus with the root of the plant. The benefits associated with such association are:
  1. Improved supply of water and nutrients to the plants.
  2. Increases tolerance of plants to environmental stress.
  3. Protects plant from soil borne pathogenic diseases.
  4. Maintains biological health of soil.
  1. 2 & 4 only.
  2. 1, 2 & 3 only.
  3. 1, 2, 3 & 4.
  4. 3 & 4 only.
  1. Algaculture is a form of aquaculture involving the farming of species of algae. The potential benefits of algal biomass are:
  1. It can be used as fertilizer.
  2. It can be used for power generation.
  3. It can be used for production of biodegradable plastics.
  4. It is useful for food processing.
  5. It can help in controlling air and water pollution.
  6. It can be used in cosmetics and pharmaceutical industries.
  7. It can be used to produce biodiesel.
  1. All except 4 & 5.
  2. All except 1 & 5.
  3. All except 7.
  4. None of the above options are correct.
  1. Over 140 countries have agreed on the first international treaty that aims to reduce the emission and release of mercury into the air, water and land. Treaty is named as the Minamata convention. Which of the following is correct with regard to this treaty:
  1. The convention prohibits primary mining of mercury.
  2. The use of mercury in products like CFL, batteries, soaps, cosmetics and medical appliances must be phased out by 2020.
  3. Treaty keeps exception for the products like vaccines’ preservatives and products related to religious faith.
  1. 1 only.
  2. 1, 2 & 3.
  3. 3 only.
  4. 1 & 2 only.
  1. Assertion: Arctic’s Ozone depletion tends to be milder and short lived than the Antarctic’s.

Reason: CFCs, Frigid temperatures and sunlight are not present at the Arctic at the same time.

  1. Assertion & Reason both are correct and Reason is the correct explanation.
  2. Assertion & Reason both are correct but reason is not the correct explanation.
  3. Assertion is wrong, Reason is correct.
  4. Assertion is correct, reason is wrong.
  1. Agricultural activities produce Green house Gases, which of the following are the gases that are produced:
  1. CO2, NO2 & CH4.
  2. NO2 & CH4 only.
  3. CO2 & CH4 only.
  4. CH4 only.
  1. Which of the following crops are used for producing Bio fuels.
  1. Sugar cane.
  2. Corn.
  3. Potato
  1. 1 & 2 only.
  2. 1 & 3 only.
  3. 2 & 3 only.
  4. 1, 2 & 3.
  1. Assertion: Two major energy blocs – the U.S. and the EU – are leading the way to phase out first-generation biofuels and replace them completely with second-generation biofuels.

Reason: Second generation bio fuels do not interfere with food production.

  1. Assertion & Reason both are correct and Reason is the correct explanation.
  2. Assertion & Reason both are correct but reason is not the correct explanation.
  3. Assertion is wrong, Reason is correct.
  4. Assertion is correct, reason is wrong.
  1. A recent study taken up by a team of researchers from the Zoological Survey of India (ZSI), Chennai, brought to light the serious threat of extinction the coral reef colonies and mangrove forests in the Palk Bay are facing. The probable reasons for this decline are:
  1. Global Warming.
  2. Siltation.
  3. Overgrowth of Algae.
  1. 1 & 2 only.
  2. 1 & 3 only.
  3. 2 & 3 only.
  4. 1, 2 & 3.
  1. Which of the following Indian Biosphere Reserves have been included in the World network of Biosphere reserves under the Man Biosphere program of UNESCO:
  1. Simplipal Biosphere Reserve.
  2. Achanakmar – Amarkantak Biosphere Reserve.
  3. Pachmarhi Biosphere Reserve.
  4. Western Ghats
  1. 1, 2 & 4 only.
  2. 1 & 3 only.
  3. 1, 2, 3 & 4.
  4. 1, 2 & 3 only.
  1. Consider the following four species.
  1. Forest Owlet.
  2. Ganges Dolphin.
  3. Ganges Shark.
  4. Dugongs.

Consider the following statements with regard to these four birds.

  1. Out of these four, exactly two are listed as critically endangered according to IUCN Red list.
  2. Out of these four, exactly one is listed as vulnerable according to IUCN Red list.
  3. Out of these four, exactly one is listed as threatened according to IUCN Red list.

Which of the above statements are correct.

  1. 1 only.
  2. 3 only.
  3. 1, 2 & 3.
  4. 1 & 2 only.
  1. An allotrope of carbon, graphite is a convenient choice to act as a neutron-moderator in a nuclear reactor. What can be a potential reason for this:

1. The carbon atom has a light nucleus that can absorb a lot of energy from fast neutrons, slowing them down effectively

2. Carbon is easily available as a solid.

3. It is light and inexpensive to handle.

  1. 1 only.
  2. 3 only.
  3. 1, 2 & 3.
  4. 1 & 2 only.
  1. Horticulture is the science of cultivation of:
  1. Fruit.
  2. Vegetables.
  3. Flowers.
  1. 1 & 2 only.
  2. 3 only.
  3. 1, 2 & 3.
  4. 1 & 3 only.
  1. Which of the following statements are correct with regard to Deer & Antelopes:
  1. Deer have antlers.
  2. Antelopes have horns.
  3. Antlers are permanent.
  4. Horns grow periodically.
  1. 1 & 3 only.
  2. 1 & 2 only.
  3. 1, 2, 3 & 4.
  4. 2 & 4 only.

Question 81 to 100

  1. Which of the following statements are correct with regard to ‘Grass’:
  1. Grass has flowers.
  2. Grass has fruits.
  3. Grass has stem.
  4. Bamboo is a grass.
  5. Sugarcane is a grass.
  1. All except 5.
  2. All except 1 & 2.
  3. All except 2.
  4. None of the above options are correct.
  1. For the purpose of coastal regulation, Coastal regulation Zone 2011 notification states that the coastal zone is:
  1. 500 m on the landward side from high tide line.
  2. 500 m on the landward side from low tide line.
  3. 12 nautical miles on the seaward side from the high tide line.
  4. 12 nautical miles on the seaward side from the low tide line.
  1. 2 & 4 only.
  2. 1 & 3 only.
  3. 1 & 4 only.
  4. 2 & 3 only.
  1. Consider the following statements:
  1. A gulf is a large body of sea surrounded by land on three sides.
  2. A bay is a large area of sea partially enclosed by land.
  3. A lagoon is a shallow lake of salt water separated from sea by offshore islands.
  4. Chilka Lake is a lagoon.
  1. 1, 2 & 4 only.
  2. 1, 2, 3 & 4.
  3. 3 & 4 only.
  4. 1, 2 & 3 only.
  1. Consider the following statements:
  1. Aceclofenac is a painkiller used by veterinary doctors.
  2. Aceclofenac is derived from diclofenac.
  3. Aceclofenac is a potential threat to vultures.

Which of the above statements is/are correct.

  1. 1 only.
  2. 3 only.
  3. 1, 2 & 3.
  4. 1 & 2 only.
  1. Consider the following statements with regard to Global Hunger Index (GHI):
  1. The dimensions of hunger that are measured for GHI are undernourishment, child under weight and child mortality.
  2. Countries are ranked on 100-point scale.
  3. Higher the GHI values, the worse the ranking of the country.
  4. India has a higher rank than Bangladesh but lower rank than Pakistan.

Which of the above statements is/are correct.

  1. 1 & 4 only.
  2. 3 only.
  3. 1, 2 & 3 only.
  4. 1, 2, 3 & 4.
  1. In which of the following diseases, a mosquito can pick up the infection from one human and transmit the infection to another:
  1. Malaria.
  2. Japanese Encephalitis.
  3. Filariasis.
  1. 1 & 2 only.
  2. 2 only.
  3. 1, 2 & 3.
  4. 1 & 3 only.
  1. Which of the following statements with regard to type 1 and type 2 diabetes are correct.
  1. The onset of type 1 is sudden whereas onset of type 2 is gradual.
  2. Type 2 is more common than type 1.
  3. In type 2, the body stops producing insulin.
  4. The onset of type 2 is primarily due to lifestyle reasons whereas the onset of type 1 is unrelated to lifestyle.
  5. Type 1 mostly affects children whereas type 2 mostly affects adults.
  1. All except 5.
  2. All except 1.
  3. All except 2 & 4.
  4. All except 3
  1. Chemical castration is a medical procedure that reduces sexual urges and arousals in a human being. The side effects of Chemical Castration include:
  1. Loss in Bone density.
  2. Loss of body hair.
  3. Greater deposition of body fat.
  4. Female like breasts in male.
  1. 1 & 3 only.
  2. 2 & 3 only.
  3. 1, 2 & 4 only.
  4. 1, 2, 3 & 4.
  1. Rabies has been made as the priority disease for control under the 12th 5-year plan. Rabies is caused by the bite of:
  1. Dogs.
  2. Monkeys.
  3. Cats.
  1. 1 & 3 only.
  2. 2 & 3 only.
  3. 1, 2 & 3.
  4. 1 & 2 only.
  1. Which of the following statements with regard to BCG is/are correct:
  1. BCG is a vaccine for TB.
  2. BCG cannot be given to HIV positive people.
  3. BCG is a live attenuated vaccine.
  1. 1 & 3 only.
  2. 2 & 3 only.
  3. 1, 2 & 3.
  4. 1 & 2 only.
  1. Chronic Myeloid Leukemia a form of cancer was in news recently. The context was:
    1. Gliveec Patent case
    2. Angelina Jolie double mastectomy – Gene Patent case.
    3. A new cure has been found for this form of cancer.
    4.   Fukushima Nuclear disaster.
  2. Correct Statements?
    1. Northwestern Himalayas are famous for Karewa formations.
    2. Karewa formations are helpful in the cultivation of Zafran.
    3. Both A and B are correct
    4. Both A and B are incorrect
  3. What do you understand by Intensive Subsistence Agriculture?
    1. In this type of agriculture the yield per unit area is high but per labour productivity is low.
    2. In this type of agriculture the yield per unit area is low but per labour productivity is high.
    3. In this type of agriculture the yield per unit area & per labour productivity is low.
    4. In this type of agriculture the yield per unit area & per labour productivity is high.
  4. The net primary productivity of an ecosystem is
    1. The gross primary productivity minus plant respiration
    2. The primary productivity at herbivore level
    3. The primary at consumer level
    4. The productivity at top consumer level minus at all levels
  5. consider following statements
    1. An ecotype is Genetically different forms of the same organisms
    2. Pyramid of trophic levels is always upright in case of energy
    3. Both A and B correct
    4. Neither A or B correct
  6. Correct Statement?
    1. Black foot disease is caused by Excess of fluoride in water
    2. Snow blindness is caused due to Ultraviolet radiations
    3. Both correct
    4. Both Incorrect
  7. Correct Statement
    1. The term “ecology” was first used by term by German zoologist Ernst Haeckel
    2. Richael Carsson’s famous book “Silent Spring” dealt with the Impacts of agro-chemicals on ecological functions
    3. Both Correct
    4. None Correct
  8. An oligotrophic lake has
    1. High levels of nutrients in water
    2. High aquatic productivity
    3. Algal blooms
    4. Low nutrients and low productivity
  9. Incorrect Statements about Eutrophication
    1. Eutrophication is the enrichment of surface waters with plant nutrients.
    2. Eutrophication can leads to algal blooms, deoxygenation of water and ultimately fish kills.
    3. Eutrophicated water is oxygen rich and safe for direct human consumption without requiring any treatment.
    4. None of above
  10. Consider the following two fresh water ecosystem
    1. Streams, Springs, Rivers are examples of lotic type fresh water ecosystem
    2. Pond, lake, ditch are examples of lentic type fresh water ecosystem
    3. both A and B are correct.
    4. Both A and B incorrect.

Answers

Courtesy: These Question-Answers were setup by Mr. Palas Nuwal

  1. D
  2. D – All are correct.
  3. C – Both are correct.
  4. D – All are correct – Refer Wiki.
  5. C
  6. B – It is not concentration but column thickness.
  7. B – Body has mechanism to prevent sunlight from producing too much vitamin D.
  8. A – Ice reflects sunrays. If it is replaced by dense forest, it will absorb more heat. As dark regions absorb more heat. Eventually aiding in Global Warming.
  9. A – It is the lightest material. Graphite Aerogel was the lightest material previously.
  10. A – It is not endemic to India – It is an invasive species. Source The Hindu – http://www.thehindu.com/news/national/other-states/a-flowering-outbreak/article4588572.ece
  11. A
  12. C – It is basic in nature.
  13. A
  14. C – SOx and NOx are not produced.
  15. B
  16. D
  17. D
  18. A
  19. A
  20. A
  21. D – All are correct.
  22. A
  23. C
  24. C
  25. C
  26. D
  27. C
  28. D
  29. D
  30. B
  31. D
  32. B – It has half the energy density of Natural gas.
  33. D
  34. C
  35. B
  36. B – Force is attractive.
  37. A
  38. D
  39. C – There is no concrete research to prove option 1 – If you find any proofs do share.
  40. D – All are correct.
  41. D
  42. D
  43. D
  44. C
  45. B
  46. D
  47. C
  48. A
  49. C
  50. D
  51. D
  52. B
  53. D
  54. A
  55. C
  56. C
  57. C – Refer IUCN Red list.
  58. C
  59. C
  60. A.
  61. C
  62. A
  63. C
  64. A – Vellayani Lake is not a Ramsar site.
  65. B
  66. D – Rice (Methane), Cattle (Methane), Permafrost (Methane and Carbon dioxide)
  67. C
  68. B
  69. D – All are correct.
  70. B
  71. A – It is necessary to have all three at the same time for ozone layer to deplete.
  72. A
  73. D
  74. A
  75. D
  76. D – Achanakmar – Amarkantak was included in 2012. Western Ghats is world heritage site.
  77. D
  78. D
  79. C
  80. B – Antlers grow in periodic fashion and horns are permanent.
  81. D. All are correct. Bamboo is the tallest grass. Sugarcane is sweet grass. Grass has flowers, fruits and stems.
  82. C
  83. C
  84. C
  85. D
  86. D
  87. D
  88. D
  89. C
  90. C
  91. A-glivec case
  92. C- NCERT class 12
  93. A- NCERT class 12
  94. A- gross minus respiration
  95. C both right
  96. B- blackfood=arsenic
  97. C- both right
  98. D- low nutrient
  99. C- read impacts of eutrophication in http://www.fao.org/docrep/w2598e/w2598e06.htm
  100. C- both definitions are correct. memorise: lentic =static (water).




So far 255 Comments posted

  1. santosh

    Thank you Mrunal sir,really i am waiting for this one,because i am getting tension about the exam in general and E&B in particular,we owe a lot to you&Palas Nuwal

  2. Kartik

    Guys Q5 , as far as i know ozone absorbs uv rays so therefore depletion of ozone layer should lead to increase in temperature rather than decreasing.
    Similarly 90 % gases are concentrated upto 3km from ground, but increase in green house gases should lead to increase in temperature coz it ll absorb earth long wave radiations !!!
    So ans of Q5 should be “D”

    Correct me if i am wrong…
    Thanks in advance.

    1. Ankit

      hey…O3 absorbs the UV radiation i.e. its trapping(absorbing e.g. if land absorbs the radiation it becomes hot) the incoming radiation. If its absent then the temperature would decrease in Upper part of atmosphere.
      Since, the GHGs would absorb the longwave in the troposphere, there would not be much energy to be absorbed in upper part of atmosphere.

      1. NM

        The heating in the stratosphere is due to the absorption of UV radiation that are emitted from the sun ( and not the one radiated from the earth). Thus depletion in ozone would lower the stratosphere temperature but an increase in Green house gas should not affect it.
        The answer for Q5 should be A.

        1. Subramaniyan

          @ NM .can you pls explain why the temperature in upper part of the troposphere should decrease.. ????

          1. NM

            Think of it like this:
            Basically the atmosphere has 3 “heat sources”.
            The thermosphere that absorb the high frequency radiation
            The ozone layer that absorbs the radiation in the UV range
            And the earth surface that absorb other rad

        2. NM

          Think of it like this:
          Basically the atmosphere has 3 “heat sources”.
          The thermosphere that absorb the high frequency radiation
          The ozone layer that absorbs the radiation in the UV range
          And the earth surface that absorb other radiation and emits out infrared.

          It is because of this peculiar feature that the temperature profile of atmosphere viz Height is a zig zag curve. The temp decreases as you move away from all the “heat sources”.

          Hope this helps.

      1. PAVAN KUMAR

        guys as per heat budget lower atmosphere heated by reflection from earth surface rather than direct sun rays.GHG effect makes much of heat emited in IR form by earth is absorbed thus heats lower tropo sphere and at the same time its stoping radiation to reach upper tropo sphere and strato sphere thus temp there reduces.

        1. sumit

          You are missing one point here. GHG such as clouds also radiates in downward as well as upward direction.So If GHG increases, consequent radiation will also increase both in upward as well as lower direction. So I have doubt with respect to second statement

  3. me

    I tried 60 quests only 60 correct.was feedup leaving blanks all over my answer paper and stoped.hw do u c this paper guys.I feel it unbearably tough.I attended 1-60.pls comment ur opinion folks.all the best for exams on 26. :) wish me luck

  4. me

    sorry sorry I typed it wrng. I got 15/60 .pardon me.:) guys pls post ur opinions. the earlier comment 60 out of 60 was mine.it is 15/60.my mistk.:)

    1. Abhishek

      Don’t worry man, we don’t have to solve all the 100 questions in the exam. Even if we get half right we should be in very good shape. I also had a hard time despite putting considerable effort in this part. Let’s hope for the best, I am sure we shall do just fine. Good Luck!!!

      1. Guru

        A good supportive words of u give some confidence for the newbies of UPSC exam thanks dude!! i too feed up while reading the questions because i dont know what it means, that itself creates a panic and tension which messes other questions so I learnt that it is better to avoid proceeding once if we are unable to understand a question without even thinking abt it :). Wishing u very ALL THE BEST :)

  5. Nikhil

    I guess this should have come a couple of weeks before…very demoralising at this point of time :(…p.s-it’s solely my personal opinion…

  6. kapy

    In ques 2 the answer is given to be D which is none are correct…but in the ans key it says D all are correct
    what is the right answer?

  7. sanchit

    Thanks sir
    I want to ask one thing,Is there a separate cutoff for both papers GS and Aptitude in prelims? or there is combined cutoffs for both papers? Pls reply soon.

        1. Guru

          ya we have some lots of space in ship to breathe, play and enjoy. In boat we dont even have space to breathe so it is the correct one :P :D

    1. sachin

      i got 25 correct but 30 wrong …
      more than 50 % questions just went off my mind…i hope its not that tough in the actual paper considering this section to be atleast 40 % of the paper…band baja hua hai subah se…

  8. LOL!

    if this is the actual level of exam, then I am not going to pass. Mr. Palas Nuwal are you serious about these questions?????

    1. Palas Nuwal

      Don’t worry about the toughness of these questions. It will best if you read a little about the terms/concepts/phenomena/species mentioned in these questions, they were all in news recently (Almost all questions are from news papers only + some extra googling). True these questions came a little late, but it is better late than never. :)

      My suggestion: Marks in this mock is of no use, but the terms/concepts/phenomena/species mentioned in these questions are important. So, cover as much as you can. :)

      *If you were to frame 100 questions for me – I am sure, I will not be bale to answer even 10 from it. The quiz master is always smarter than others. ;)

  9. Nitin

    Please,,,Please,,,,provide Mock MCQ Questions on other sections (History,,,Geography,,,Indian Cultural Heritage,,,,,Current Affair) also,,,I shall be grateful to you for rest of my life……..Please Sir!!!!!!!!!!!!!!

  10. Vibin

    Does Carbon Monoxide produce inside body . Its just inhaled from outer world , and its lethal , so how come it be a neurotransmitter ?

    1. Guru

      I think our brain cells are interacted with CO in indirect form buddy. Im not sure but i read it somewhere :)

    1. Guru

      1. Mark without penalty = +106 (53 are correct so x 2)
      2. Penalty (- mark)= -4.33 (13 are wrong x 2/6)
      Total Mark = 101.667 (1 – 2).
      Great score with good accuracy all the best buddy :)

      1. RC10

        4.33 would be the number of questions whose marks have to be deducted, so in this case total marks would be 106 – (4.33 x 2) = 97.34, but yeah, still a very potent score.

  11. Swapnil

    Q.99 , it is not given anywhere that “Eutrophicated water is oxygen rich and safe for direct human consumption without requiring any treatment.”… this question was appeared in MPSC exam held on 18-May-2013.

    1. Guru

      Read the question buddy it is Incorrect statement. Eutrophicated water is not rich in oxygen here it say it is rich hence it is the wrong statement :)

  12. Swapnil

    Do anyone have link\ reference for the clear cut classification of IUCN red list species in INDIA? thousands of questions appears but none of the site has clearly given the clear cut list of those species in INDIA…..please help

  13. Kartik

    @ subramanyam

    Temp decreases in troposphere with increase in height ( lapse rate 6.5 degree celcius) and in stratosphere temp. Increases with height .

    Hope dis clears ur doubt.

  14. vinu

    Q 45 please give the exlpaination,is desertification not leads to global warming we know that tree cover absorbs the CO2 in the best way

    1. dr

      bleaching means loss of color. zoo plankton induce the color to the corals. with the increase in temp and salinity of the waters the plankton either die or leave the corals

  15. rahul

    I am feeling like i was slept for the whole year.
    thanks mrunal to wake up me at right moment ……… ( little bit late)

  16. kapil

    ques 39:
    @Mrunal Sir: I read somewhere few years back, that govt has banned oxytocin since it cause even the last drop of milk to come out, which may sometime contains blood traces, and hence harmful fo consumption.

  17. Vivek Khare

    Answer to question 1 is wrong. Dark matter does confirm acceleration as they would be biggest factor in calculating velocities of galaxies. Normal balckholes dont confirm this phenomena but only special type when it starts collecting large amounts of gas from surrounding. So 1,2 & 3 would be more appropriate here.

  18. taste victory

    some of d questions eutrophication,yew plant to treat cancer, appeared in mpsc as well..d mcq given are damn potential

  19. NKS

    In question number 8 . I think that it will decrease global warming because global warming is not due to absorption of heat by forest but by reflection of sun rays back to earth by green house gases, and due to dense forest CO2 (main component of GHG’s) will be absorbed thereby decreasing global warming.

    1. Palas Nuwal

      That is a nice conspiracy theory you have. ;)

      Unfortunately, the correct answer is: Desertification does not lead to global warming.

        1. Palas Nuwal

          Explanation for Q 45.

          One of the factors that causes desertification is global warming and not vice – versa.

          Quoting from your article: One of the most alarming processes of global concern, meanwhile, is desertification or land degradation. The recent major report of the Millennium Ecosystem Assessment entitled Ecosystems and Human Well-Being underlines the fact that desertification is one of the greatest environmental challenges and a major impediment to meeting basic human needs in drylands. Desertification is due to direct and indirect human-induced factors, but it is also due to climatic variations, including increasing droughts and flash floods or reduced freshwater availability as a result of global warming.

          Quoting my source: http://www.enviropedia.org.uk/Global_Warming/Desertification.php

          1. VIPs

            It nowhere says vice versa not true…in fact in climate sciences there is positive feedback

      1. Zodiac

        and why is that because you say so, it not the IPCC view REDD,and Green India mission. Their line of thinking is desertification->deforestration->reduced carbon sink-> more CO2->global warming. Your view on this is a minority view, just like few who say global warming is beneficial or glaciers are not shrinking. there’s a difference bw minority view and universally acknowledged view.

  20. Vivek Anand

    I Pass-Out( faint) every time I look at these questions. All thru my preparation,did i keep playing thru the gallery only??
    Anyways, would like to know how many pass( and dont pass out!) in this sample…

  21. vishnu

    dear mrunal.. thanks for the article.. and the answer for quetion 86 is c not d.. mosquitoes transmit all thoes three diseases.. thank u.. and i attempted 70 questions and i got 58 correct and remaining wrong.. is this enough for prelims???

  22. ranswitzer

    guys please add on some more endangered and critically endangered species in our country

    here r some……………
    wild ass
    1 horn rhinoceros
    lion tailed macaque
    nilgiri tahr
    chiru
    oryx
    namdapha flying squirrel
    gangetic dolphin n shark
    snow leopard

    cheetah extict in India

      1. ranswitzer

        @palash
        thanks a ton….actually I can understand what you meant, but still UPSC ask 2 or 3 questions every year from this section directly or indirectly.

        anyway All the best 4 pre…

      2. ranswitzer

        @palas
        thanks a ton once again 4 ur timely help…..ur link was really very helpful 4 me…I manage to solved all the question from this section. anyway hw was prelims? ?? hope u did well.

  23. jasmine

    For ques no 8..the replacemnt of ice wid forests will introduce a carbon sink which will reduce green house gas co2 in atmosphere. So global warming shd decrease. Is it not true?

Write your message!