- CSAT Paper-II comprehension: Observation
- Preparing inference-assumption for Prelim 2017?
- BRIEF THEORY
- SETs: Assumption-inference
- INFERENCE: Food security and biodiversity
- INFERENCE: Climate adaptation
- INFERENCE: Biodiversity is water purifier?
- INFERENCE: Needs form basis of society
- INFERENCE: Agriculture GHG
- INFERENCE: Diet for 2050
- IMPLICATION: Comparing National Income
- Assumption: Lactose tolerance
- IMPLICATION: Banking services
- SETs: Corollary and Misc. MCQs
- SETs: Multi-question Passages
CSAT Paper-II comprehension: Observation
- From length and time wise, itād seem most of paper-II came from environment. But thatās because lot of ‘one paragraph-one MCQ’ type sets asked from Environment. Otherwise, quantitatively, comprehension MCQs are almost evenly distributed among polity vs environment vs economy- in the same 7-10 range. (Ref: Above graph).
- Significant number of comprehension MCQs- required candidate to identify inferences. There is no single-standard theory for it. So, and many of the answer choices are open to multiple interpretations. Hence, only UPSC official Answerkey can stoke the debate fire about which answer is correct!
- Two years back, UPSC had made paper-II qualifying in nature due to protests. It seems the examiner wants to get āevenā by gradually making paper tougher/lengthy every year. Lesson being: you canāt take paper-II in casual manner just because it requires only 33% passing marks.
Preparing inference-assumption for Prelim 2017?
- In many of these passages- one sentence would run for 4-5 lines, giving lots of data and logics embedded within. Those who simply rely on bullet-point readymade study material for everything- theyād find it difficult to process mentally at fast pace.
- Therefore, youāve to cultivate habit of regularly reading newspaper columns, editorials, articles.
- For assumption inference- Plenty of techniques and practice sets in the book Analytical Reasoning by Analytical Reasoning by M.K.Pandey (BSC Publication).
- MK Pandey is sufficient. If still time, energy and money left you may also consult ManhattanGMAT Critical Reasoning Guide. Especially for its āt-diagramā strategy.
Besides, even in banking sector officer level exams, the passages are getting longer / tougher. So time and energy spent in preparation of this topic, is not going in vain, if youāre planning for banking sector as a career backup.
BRIEF THEORY
What is assumption?
- Assumption + Premise makes the passage.
- If we make negative statement of the correct assumption then entire passage will become invalid. (using this method, we can safely reach the correct option. Go through passages to see this technique in action).
What is inference?
- It is the conclusion reached from the given premises, on the basis of evidence and reasoning.
- It is possible that more than one option will be āprobably trueā from the premise given in the passage. But weāve to pick the option that is ādefinitely trueā.
- T-diagraming technique helps in quickly eliminating the wrong options. Go through Answerkey to see t-diagram technique in action.
As t-diagram looks like this
For conclusion | Against conclusion |
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Background info: blah..blah..blah. |
Not every passage will contain both for and against arguments. But in future, if UPSC starts asking new variety of MCQ e.g. āwhich of the following statements will strengthen or weaken the authorās position etc.ā, then manually youāll have to test it by putting them in t-diagram.
What is Corollary?
Ans. It’s an inference that follows directly from the proof of another proposition.
Ref: Nishith Sinha’s CAT Reasoning Book, page 4.4
SETs: Assumption-inference
INFERENCE: Food security and biodiversity
We are witnessing a dangerous dwindling of biodiversity in our food supply. The green revolution is a mixed blessing. Over time farmers have come to rely heavily on broadly adapted, high yield crops to the exclusion of varieties adapted to the local conditions. Mono-cropping vast fields with the same genetically uniform seeds helps boost yield and meet immediate hunger needs. Yet high-yield varieties are also genetically weaker crops that require expensive chemical fertilizers and toxic pesticides. In our focus on increasing the amount of food we produce today, we have accidentally put ourselves at risk for food shortages in future.
Let’s make t-diagram first
For conclusion | Against conclusion |
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25. Which among the following is the most logical and critical inference that can be made from the above passage?
Statement | Check |
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(a) In our agricultural practices, we have become heavily dependent on expensive chemical fertilizers and toxic pesticides only due to green revolution | Possibly true but not definitely true, because they’ve used absolute term “only due to”. |
(b) Monocropping vast fields with high-yield varieties is possible due to green revolution | True. But not the most critical inference. |
(c) Monocropping with high-yield varieties is the only way to ensure food security to millions | Possibly true but not definitely true, because they’ve used absolute term “only way”. |
(d) Green revolution can pose a threat to biodiversity in food supply and food security in the long run |
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INFERENCE: Climate adaptation
Climate adaptation may be rendered ineffective if policies are not designed in the context of other development concerns. For instance, a comprehensive strategy that seeks to improve food security in the context of climate change may include a set of coordinated measures related to agricultural extension, crop diversification, integrated water and pest management and agricultural information series. Some of these measures may have to do with climate changes and others with economic development.
Let’s make t-diagram first
For conclusion | Against conclusion |
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42. What is the most logical and rational inference that can be made from the above passage?
Statement | Check |
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(a) It is difficult to pursue climate adaptation in the developing countries | Outside the premise. Since 1st world, 3rd world mention not given. No mention that 3rd world or poverty is cause or catalyst behind climate change. |
(b) Improving food security is a far more complex issue than climate adaptation | Probably true but not definitely true from the given passage. |
(c) Every developmental activity is directly or indirectly linked to climate adaptation | Entire passage focused on climate adaptation. Every statement uses the word “may be”. Here they’ve used absolute term “every”. Hence, not a fitting rational inference. |
(d) Climate adaptation should be examined in tandem with other economic development assumptions. | Since others are wrong. This has to be right option. Because it uses the word ‘should be’,Ā and not ‘must be’ |
Inference: Biodiversity is water purifier?
Understanding of the role of biodiversity in the hydrological cycle enables better policy-making. The term biodiversity refers to the variety of plants, animals, microorganisms, and the ecosystems in which they occur. Water and biodiversity are interdependent. In reality, the hydrological cycle decides how biodiversity functions. In turn, vegetation and soil drive the movement of water. Every glass of water we drink has, at least in part, passed through fish, trees, bacteria, soil and other organisms. Passing through these ecosystems, it is cleansed and made fit for consumption. The supply of water is a critical service that the environment provides.
Let’s make t-diagram first
For conclusion | Against conclusion |
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Background info: Biodiversity means variety of org. |
43. Which among the following is the most critical inference that can be made from the above passage ?
Statement | Check |
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(a) biodiversity sustains the ability of nature to recycle water | Definitely True from the premise and Since other options are wrong, This must be general dong. |
(b) We cannot get potable water without the existence of living organisms | Probably true but not definitely true. Because Passage doesn’t hint such extreme or absolute notions that there are no other methods to purify water. |
(c) Plants, animals and microorganisms continuously interact among themselves | True but not the ‘most critical inference’. |
(d) Living organisms could not have come into existence without hydrological cycle | Scientifically true. But not given in the premise. Hence it’s not the most critical inference from the passage. |
INFERENCE: Needs form basis of society
To understand the nature and quantity of Government proper for man, it is necessary to attend to his character. As nature created him for social life, she fitted him for the station she intended. In all cases she made his natural wants greater than his individual powers. No one man is capable, without the aid of society, of supplying his own wants; and those wants, acting upon everyĀ individual, impel the whole of them into society.
Let’s make t-diagram
For conclusion | Against conclusion |
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Background info: |
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46. Which among the following is the most logical and rational inference that can be made from the above passage?
Statement | Check |
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(a) Nature has created a great diversity in human society | True from the background info. But not the most logical inference. |
(b) Any given human society is always short of its wants | Probably true but not definitely true, due to absolute term “any given society”. Besides, passage talks about nature of human-wants rather than of society’s wants so, difficult to infer. |
(c) Social life is a specific characteristic of man | Not possible to infer because Passage doesn’t hint that other mammals, bees, ants etc. don’t have social life, internal-hierarchy, governance in their own natural way. |
(d) Diverse natural wants forced man towards social system | Definitely true. Because other options are wrong. And yes, definitely true according to passage. |
INFERENCE: Agriculture GHG
About 15% globalĀ GHG emissions come from agricultural practices. This includes nitrous oxide fertilizers; methane from livestock, rice production, and manure storage; and carbon dioxide (CO2) from burning biomass, but this excludes CO2 emissions from soil management practices, Savannah burning and deforestation. Forestry, land-use, and land-use change account for anotherĀ 17 percent of greenhouse gas emissions each year, three quarters of which come from tropical deforestation. The remainder is largely from draining and burning tropical peatland. About the same amount of carbon is stored in the world’s peatlands as is stored in the Amazon rainforest.
Letās make T-diagram
For conclusion | Against conclusion |
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So total 15+17 = 32% GHG from above sources. |
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Background info: Carbon stored in peatland = carbon stored in Amazon rainforest. |
48. Which among the following is the most logical and rational inference that can be made from the above passage?
Statement | Check |
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(a) Organic farming should immediately replace mechanized and chemical dependent agricultural practices all over the world |
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(b) It is imperative for us to modify our land use practices in order to mitigate climate change. | Definitely true. Because other options are difficult to infer. |
(c) There are no technological solutions to the problem of greenhouse gas emissions | Overstatement. Absolute term “no” is used. Passage nowhere laments about impossibility of solutions but merely describes the sources of GHG emission. |
(d) Tropical areas are the chief sites of carbon sequestration | From background info. IF tropical peatland + amazon rainforest were both burned than it’d be 2 x 4.75% = less than 10% of GHG emission. So difficult to infere that a large carbon mass is ‘stored’ within them. |
INFERENCE: Diet for 2050
As we look to 2050, when we will need to feed two billion more people, the question of “Which diet is best?” has taken on new urgency. The foods we choose to eat in the coming decades will have dramatic ramifications for the planet. Simply put, a diet that revolves around meat and dairy a way of eating that is on the rise throughout the developing. world, will take a greater toll on the world’s resources than one that revolves around unrefined grains, nuts, fruits and vegetables.
Letās make t-diagram
For conclusion | Against conclusion |
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Background info: 2 bn people to be added by 2050. |
64. What is the critical message conveyed by the above passage?
(a) Our increasing demand for foods sourced from animals puts a greater burden on our natural resources. | Definitely true from the ‘for conclusion’ points. Besides other options not fitting. |
(b) Diets based on grains, nuts, fruits and vegetables are best suited for health in developing countries. | Probably true but not definitely true. Passage is focused on resource consumption rather health benefit. Hence difficult to infer. |
(c) Human beings change their food habits from time to time irrespective of the health concerns | Probably true but not definitely true. Passage is focused on resource consumption rather health benefit. Hence difficult to infer. |
(d) From a global perspective, we still do not know which type of diet is best for us. | It’s not the most critical message in the Passage. Author merely states that we’re focusing more due to rising population by 2050. most critical message is how 3rd world’s love for meat-milk will put more pressure on resources than fruit-veg-grains. |
IMPLICATION: Comparing National Income
“The conceptual difficulties in National Income comparisons between underdeveloped and industrialized countries are particularly serious because a part of the national output in various underdeveloped countries is produced without passing through the commercial channels.”
66. In the above statement, the author implies that:
(a) the entire national output produced and consumed in industrialized countries passes through commercial channels | Probably true but not definitely true, because ofĀ word “Entire output” is used. Difficult to verify this statement from the passage and premise. May be 1st world’s 0.001% is passing thru non-commercial but it’s negligible, compared to the larger nuisance of non-commercial channels in 3rd world countries. |
(b) the existence of a non-commercialized sector in different underdeveloped countries renders the national income comparisons over countries difficult | Probably true but not definitely true, because
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(c) no part of national output should be produced and consumed without passing through commercial channels | Probably true but not definitely true because
In short, difficult to verify from the given premise and passage, hence difficult to say that author would imply such thing. |
(d) a part of the national output being produced and consumed without passing through commercial channels is a sign of underdevelopment | Definitely true. |
PS: According to Merriam-Webster dictionary, imply and infer are synomonyms hence we needn’t change strategy.
Assumption: Lactose tolerance
All humans digest mother’s milk as infants, but until cattle began being domesticated 10,000 years ago, children once weaned no longer needed to digest milk. As a result, they stopped making the enzyme lactase, which breaks down the sugar lactose into simple sugars. After humans began herding cattle, it became tremendously advantageous to digest milk, and lactose tolerance evolved independently among cattle herders in Europe, the middle East and Africa. Groups not dependant on cattle, such as the Chinese and Thai, remain lactose intolerant.
Let’s make a t-diagram
For conclusion | Against conclusion |
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65. Which among the following is the most logical assumption that can be made from the above passage?
MIND IT!! You’ve to find assumption, not inference. While finding assumption, we must keep two things in MIND:
- Assumption + Premise => leads to conclusion.
- Negating Correct assumption will destroy the argument. Then whole premise, passage and conclusion will become invalid.
Statement | Check |
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(a) About 10,000 years ago, the domestication of animals took place in some parts of the world | This is not ‘assumption.’ it can be inferred from the facts given- I.e. Europe-Africa cattle herders immune while China-Thai people have trouble- because they didn’t depend on cattle. |
(b) A permanent change in the food habits of a community can bring about a genetic change in its members |
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(c) Lactose tolerant people only are capable of getting simple sugars in their bodies |
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(d) People who are not lactose tolerant cannot digest any dairy product | Can be inferred from the facts given in passage- about lactase enzyme and Europe-African cattle hearders. Hence it is not an ‘assumption.’ |
IMPLICATION: Banking services
In the last decade, the banking sector has been restructured with a high degree of automation and products that mainly serve middle-class and upper middle-class society. Today there is need for a new agenda for the banking and non-banking financial services that does not exclude the common man.
44. Which one of the following is the message that is essentially implied in the above passage?
(a) Need for more automation and more products of bank
(b) Need for a radical restructuring of our entire public finance system
(c) Need to integrate banking and non-banking institutions
(d) Need to promote financial inclusion
Passage laments the automated banking services focused on middle class while excluding common man. Therefore “D” is most aptly implied that we need financial inclusion ie. Bank and non-banking fin services catering all families, including common man’s.
Sets: Corollary and Misc. MCQs
Corollary: CO2, Soil Carbon
An increase in human-made carbon dioxide in the atmosphere could initiate a chain reaction between plant and microorganisms that would unsettle one of the largest carbon reservoirs on the planet soil. In a study, it was found that the soil, which contains twice the amount of carbon present in a plants and Earth’s atmosphere combined, could become increasingly volatile as people add more carbon dioxide to the atmosphere. This is largely because of increased plant growth. Although a greenhouse gas and a pollutant, carbon dioxide also supports plant growth. As trees and other vegetation flourish in a carbon dioxide-rich future, their roots could stimulate microbial activity in soil that may in turn accelerate the decomposition of soil carbon and its release into the atmosphere as carbon dioxide.
Let’s make T-Diagram
For conclusion | Against conclusion |
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67. Which among the following is the most logical corollary to the above passage ?
We’ll go by Nishith Sinha’s CAT definition: Corollary = inference.
(a) Carbon dioxide is essential for the survival of microorganisms and plants. |
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(b) Humans are solely responsible for the release of carbon dioxide into the atmosphere. |
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(c) Microorganisms and soil carbon are mainly responsible for the increased plant growth. |
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(d) Increasing green cover could trigger the release of carbon trapped in soil. |
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Corollary: Crony Capitalism
By killing transparency and competition, crony capitalism is harmful to free enterprise, opportunity and economic growth. Crony capitalism, where rich and the influential are alleged to have received land and natural resources and various licenses in return for payoffs to venal politicians, is now a major issue to be tackled. One of the greatest dangers to growth of developing economies like India is the middle-income where crony capitalism creates oligarchies that slow down the growth.
Let’s prepare t-diagram
For conclusion | Against conclusion |
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41. Which among the following is the most logical corollary to the above passage ?
Statement | Check |
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(a) Launching more welfare schemes and allocating more finances for the current schemes are urgently needed | No clear information given in passage whether such move is required or will lead to decline of crony capitalism. |
(b) Efforts should be made to push up economic growth by other means and provide licences to the poor |
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(c) Greater transparency in the functioning of the government and promoting the financial inclusion are needed at present | Introduces new premise ‘financial inclusion’. But no mention in passage indicates that lack of financial inclusion is responsible for bottleneck in economic growth or rise in crony capitalism. |
(d) We should concentrate more on developing manufacturing sector than service sector. | No clear information given in the passage whether crony capitalism is less prevalent in mfg. Sector than in service sector. |
Misc: Manual Scavenging
Safe and sustainable sanitation in slums has immeasurable benefits toĀ women and girls in terms of their health, safety, privacy and dignity. However, women do not feature in most of the schemes and policies on urban sanitation. The fact that even now the manual scavenging exists, ones to show that not enough has been done to promote pour-flush toilets and discontinue theĀ use of dry latrines. A more sustained and rigorous campaign needs to be launched towards the right to sanitation on a very large scale. This should primarily focus on the abolition of manual scavenging.
45. With reference to the above passage, consider the following statements:
Statement | Analysis |
1. Urban sanitation problems can be fully solved by the abolition of manual scavenging only. | No. Because it uses absolute terms like “fully” and “only”. Hence probably true/ in doubt area; but not definitely true. |
2. There is a need to promote greater awareness on safe sanitation practices in urban areas. | Yes, definitely true. All keywords covered. Meaning also fits within the premise of passage. |
Which of the statements given above is/are correct?
(a) 1 only
(b) 2 only
(c) Both I and 2
(d) Neither 1 nor 2
Misc: Economics and politics
The nature of the legal imperatives in any given state corresponds to the effective demands that state encounters, and that these, in their turn, depend, in a general way, upon the manner in which economic power is distributed in the society which the state controls.
47. The statement refers to:
(a) the antithesis of Politics and Economics
(b) the interrelationship of Politics and Economics
(c) the predominance of Economics over Politics
(d) the predominance of Politics over Economics
Let’s arrange sequence
This is a statement given by Harold Laski.
- State controls economic power distribution in society.
- Depending on economic power, juntaa will demand (xyz type of) legal imperatives from state.
From above sequence:
- We don’t see politics and economics are against each other or have different paths. So A (Antithesis) is wrong.
- Sequence doesn’t show domination of x over y. So C and D gone.
- Thus, we’re left with answer B.
Sets: Multi-question Passages
Accountability, Vigilance, Civil services
Note:- For easier reference, I’ve broken the paragraph into bullet-numbered sentences.
- Accountability, or the lack of it, in governance generally, and civil services, in particular, is a major factor underlying the deficiencies in governance and public administration.
- Designing an effective framework for accountability has been a key element of the reform agenda.
- A fundamental issue is whether civil services should be accountable to the political executive of the day or to society at large.
- In other words, how should internal and external accountability be reconciled?
- Internal accountability is sought to be achieved by
- internal performance monitoring,
- official supervision by bodies like the —Central-Vigilance Commission-and-Comptroller and AuditorāGeneral, and
- judicial review of executive decisions.
- Articles 311 and 312 of the Indian Constitution provide job security and safeguards to the civil services, especially the All India Services.
- The framers of the Constitution had envisaged that provision of these safeguards would result in a civil service that is not totally subservient to the political executive but will have the strength to function in larger public interest.
- The need to balance internal and external accountability is thus built into the Constitution. The issue is where to draw the line.
- Over the years, the emphasis seems to have tilted in favour of greater internal accountability of the civil services to the political leaders of the day who in turn are expected to be externally accountable to the society at large through the election process.
- This system for seeking accountability to Society has not worked out, and has led to several adverse consequences for governance.
- Some special measures can be considered for improving accountability in civil services.
- Provisions of articles 311 and 312 should be reviewed and laws and regulations framed to ensure external accountability of civil services.
- The proposed Civil Services Bill seeks to address some of these requirements.
- The respective roles of professional civil services and the political executive should he defined so that professional managerial functions and management of civil services are depoliticized.
- For this purpose, effective statutory civil service boards should be created at the centre and in the states.
- Decentralization and devolution of authority to bring government and decision making closer to the people also helps to enhance accountability.
Answer following questions:
1. According to the passage, which of the following factor/factors led to the adverse consequences for governance/public administration?
1. Inability of civil services to strike a balance between internal and external accountabilities
2. Lack of sufficient professional training to the officers of All India Services
3. Lack of proper service benefits in civil services
4. Lack of Constitutional provisions to define the respective roles of professional civil services vis-a-vis political executive in this context
Select the correct answer using the code given below :
(a) 1 only
(b) 2 and 3 only
(c) 1 and 4 only
(d) 2, 3 and 4
Question statement no. 2 and 3 are not mentioned. This eliminates B and D.
Question statement no. 4 is implied in para sentence no. 12 and 14.
Hence, we’re left with answer “C”
2. With reference to the passage, the following assumptions have been made :
1. Political executive is an obstacle to the accountability of the civil services to the society
2. In the present framework of Indian polity, the political executive is no longer accountable to the society
Which of these assumptions is/are valid?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
Assumption + Premise = Conclusion. If we take correct assumption as negative, then entire passage will nullify. Let’s put both statements to this test:
Statement | Check |
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1. Political executive is an obstacle to the accountability of the civil services to the society. |
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2. In the present framework of Indian polity, the political executive is no longer accountable to the society. |
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3. Which one of the following is the essential message implied by this passage?
(a) Civil services are not accountable to the society they are serving.
(b) Educated and enlightened persons are not taking up political leadership.
(c) The framers of the Constitution did not envisage the problems being encountered by the civil services.
(d) There is a need and scope for reforms to improve the accountability of civil services
Read paragraph sentence 2 and 4. Answer is D
4. According to the passage, which one of the following is not a means of enhancing internal accountability of civil services?
(a) Better job security and safeguards
(b) Supervision by Central Vigilance Commission
(c) Judicial review of executive decisions
(d) Seeking accountability through enhanced participation by people in decision making process
Read para. sentence 5 and 6. Thereby A, B and C fits. Hence “D” is not meant for increasing internal accountability.
Justice, religion, communion
- In general, religious traditions stress our duty to god, or to some universal ethical principle.
- Our duties to one another derive from these.
- The religious concept of rights
- is primarily derived from our relationship to this divinity or principle
- and the implication it has on our other relationships.
- This correspondence between rights and duties is critical to any further understanding of justice.
- But, for justice to be practiced; rights and duties cannot remain formal abstraction.
- They must be grounded in
- a community (common unity)
- bound together by a sense of common union (communion).
- Even asĀ a personal virtue, thisĀ solidarity is essential to the practice and understanding of justice.
5. With reference to the passage, the following assumptions have been made :
Negative of true assumption will make the passage/premise will become invalid. Let’s check.
Statement | Check |
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1. Human relationships are derived from their religious traditions |
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2. Human beings can be duty bound only if they believe in god |
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3. Religious traditions are essential to practice and understand justice |
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Which of these assumption(s) is/are valid?
(a) 1 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
6. Which one of the following is the crux of this passage?
Statement | Check |
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(a) Our duties to one another derive from our religious traditions | One of the premises in passage. Not the ‘crux’. |
(b) Having relationship to the divine principle is a great virtue | Not mentioned. |
(c) Balance between rights and duties is crucial to the delivery of justice in a society | Since others don’t fit, this has to be the right option. Read para sentence 5 to 7. |
(d) Religious concept of rights is primarily derived from our relationship to god. | One of the premises in passage. Not the ‘crux’. |
Biofuel & climate mitigation
- Biomass as fuel for power, heat, and transport has the highest mitigation potential of all renewable sources.
- It comes from agriculture and forest residues as well as from energy crops.
- The biggest challenge in using biomass residues is a long-term reliable supply delivered to the power plant at reasonable costs;
- the key problems are
- logistical constraints
- costs of fuel collection.
- Energy crops, if not managed properly, compete with food production and may have undesirable impacts on food prices.
- Biomass production is also sensitive to the physical impacts of a changing climate.
- Projections of the future role of biomass are probably overestimated,
- given the limits to the sustainable biomass supply,
- unless breakthrough technologies substantially increase productivity.
- Climate-energy models project that biomass use could increase nearly four-fold to around 150 ā 200 exajoules, almost a quarter of world primary energy in 2050.
- However the maximum sustainable technical potential of biomass resources (both residues and energy crops) without disruption of food and forest resources
- ranges from 80 ā 170 exajoules a year by 2050
- and only part of this is realistically and economically feasible.
- In addition, some climate models rely on biomass-based carbon capture and storage,
- an unproven technology
- to achieve negative emissions and to buy some time during the first half of the century.
- Some liquid biofuels such as corn-based ethanol, mainly for transport, may aggravate rather than ameliorate carbon emissions on a life-cycle basis.
- Second generation biofuels, based on ligno-cellulosic feedstocks ā such as straw, bagasse, grass and wood ā hold the promise of sustainable production that is high-yielding and emit low levels of greenhouse gases, but these are still in the R & D stage.
21. What is/are the present constraint/constraints in using biomass as fuel for power generation?
Statement | Check |
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1. Lack of sustainable supply of biomass | Yes, ref. para sentence 4 and 5. |
2. Biomass production competes with food production | Yes, ref. para sentence 4d |
3. Bio-energy may not always be low carbon on a life-cycle basis | Yes, ref. para sentence 9. |
Select the correct answer using the code given below:
(a) 1 and 2 only
(b) 3 only
(c) 2 and 3 only
(d) 1, 2 and 3
22. Which of the following can lead to food security problem?
1. Using agricultural and forest residues as feedstock for power generation | Ref. para sentence 10. it gives examples of such things- woods, straw, grass. Since we’re not directly consuming such residue as edible food, therefore, it won’t create food security problem. Hence #1 is wrong, we’re left with “B” and “C”. |
2. Using biomass for carbon capture and storage | This will not directly affect food security. Yes, indirectly may affect if lot of irrigated land is devoted to such biomass-capture crop- if it’s inedible. Lot of caveats and hairsplitting. So let’s take this statement as wrong” we’re left with “B”. |
3. Promoting the cultivation of energy crops | Yes, ref. para sentence 4c. This eliminates “A” |
Select the correct answer using the code given below:
(a) 1 and 2 only
(b) 3 only
(c) 2 and 3 only
(d) 1, 2 and 3
23. In the context of using biomass, which of the following is/are the characteristic/characteristics of the sustainable production of biofuel?
Statement | Check |
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1. Biomass as a fuel for power generation could meet all the primary energy requirements of the world by 2050 | Wrong Ref. sentence 6 and 7. even if max. potential reached, it’ll be just quarter (25%). This eliminates “A” |
2. Biomass as a fuel for power generation does not necessarily disrupt food and forest resources | Wrong. Ref. sentence 4c. This eliminates “C” and “D”. |
3. Biomass as a fuel for power generation could help in achieving negative emissions, given certain nascent technologies | By elimination we’re left with “B”. Besides this statement is right, ref. para sentence 8. |
Select the correct answer using the code given below:
(a) 1 and 2 only
(b) 3 only
(c) 2 and 3 only
(d) 1, 2 and 3
24. With reference to the passage, following assumptions have been made :
Statement | Check |
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1. Some climate-energy models suggest that the use of biomass as a fuel for power generation helps in mitigating greenhouse gas emissions |
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2. It is not possible to use biomass as a fuel for power generation without disrupting food and forest resources |
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Which of these assumptions is/are valid?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
Food supply and demand
- Historically, the biggest Challenge to world agriculture has been to achieve a balance between demand for and supply of food.
- At the level of individual countries, the demand-supply balance can be a critical issue for a closed economy,
- especially if it is a populous economy and its domestic agriculture is not growing sufficiently enough to ensure food supplies, on an enduring basis;
- it is not so much and not always, of a constraint for an open, and growing economy, which has adequate exchange surplus to buy food abroad.
- For the world as a whole, Supply-demand balance is always an inescapable prerequisite for warding off hunger and starvation.
- However, global availability of adequate supply does not necessarily mean that food would automatically move from countries of surplus to of deficit if the latter lack in purchasing power.
- The uneven distribution of hunger, starvation, under or malnourishment, etc., at the world-level, thus owes itself to the presence of empty-pockĀ hungry mouths, overwhelmingly confined to the underdeveloped economies.
- In as much as ‘a two-square meal’ is of elemental significance to basic human existence, the issue of worldwide supply of food has been gaining significance, in recent times, both because
- the quantum and the composition of demand has been undergoing big changes,
- and because, in recent years, the capabilities individual countries to generate uninterrupted chain of food supplies have come under strain.
- Food production, marketing and prices,
- especially price-affordability by the poor in the developing world,
- have become global issues that need global thinking and global solutions.
68. According to the above passage, which of, the following are the fundamental solutions for the world food security problem?
Statement | Check |
---|---|
1. Setting up more agro-based industries | Debatable, but by elimination method we don’t have to deal with this. |
2. Improving the price affordability by the poor | Correct. Ref sentence 9/A. this eliminates “C” |
3. Regulating the conditions of marketing | Correct. Ref sentence 9. this eliminates “A”. |
4. Providing food subsidy to one and all |
|
Select the correct answer using the code given below:
(a) 1 and 2
(b) 2 and 3 only
(c) 1, 3 an 4 only
(d) 1, 2, and 4
69. According to the above passage, the biggestĀ challenge to world agriculture is:
(a) to find sufficient land for agriculture and to expand food processing industries
(b) to eradicate hunger in underdeveloped countries
(c) to achieve a balance between the production of food and non-food items
(d) to achieve a balance between demand for and supply ofĀ food
Ref para sentence 1, 5, 6- they all hint about the challenge of supply and demand mismatch.
As such even “B” may look tempting, but since para sentence 1 verbatim gives “D” statement. So we’ve to go with “D”.
70. According to the above passage, which of the following helps/help in reducing hunger and starvation in the developing economies ?
Statement | Check |
---|---|
1. Balancing demand and supply of food | Definitely true, ref. para sentence 1, 5, 6. This eliminates “B”. |
2. Increasing imports of food | Probably true but not definitely true.
So, this eliminates “B” and “D”. |
3. Increasing purchasing power of the poor | Definitely true. Ref para sentence 6 and 9A.Ā Hence, we’re left with answer “C”. |
4. Changing the food consumption patterns and practices
Select the correct answer using the code given below:
(a) 1 only
(b) 2, 3 and 4 only
(c) 1 and 3 only
(d) 1, 2, 3 and 4
71. The issue of worldwide supply of food has gained importance mainly because of:
1. overgrowth of the population worldwide |
|
2. sharp decline in the area of food production |
|
3. limitation in the capabilities for sustained supply of food | Definitely true, Ref.8/b. This eliminates “A”. |
Select the correct answer using the code given below:
(a) 1 and 2 only
(b) 3 only
(c) 2 and 3 only
(d) 1, 2 and 3
Answer could be either “B” or “D”. UPSC official answer key will be the final judge.
start lecture series on environment plz
@anonymous
Thanks for the revert..does ignou b.a. cover entire paper 2..or m a ignou is also required ..also if ignou is done then is there need to read books like nagla,Veena das, nadeem hasnain,yogendra Singh, ram ahuja etc.
result kab awega pre ka
mrunal ji when will be starting your main lecture series this year im eagerly waiting for it
When are the maths solutions coming?
kya ye satya h ki is varsh ka prashna patra lok seva ayog ke itihas ka sabse saral prashna patra tha …aur esa anumanit h ki cut off marks 140 ke kareeb honge?mere sabhi mitro ke lagbhag 140 se 150 aa rahe h …
@amrit ji
bilkul sahi anumaan hai ..prashnapatra saral hone ke karan sabhi logon ko 140 se adhik ank prapt ho rahe hain aur aisa kaha ja raha hai ki vicchedak ank lagbhag 140 ke uprant hi honge..dhanyaavad
Dhanyawad hindi purush ji …….vicchedak ank lagbhag 150 honge ..esa lagta h
Amrit you are discouraging other students, if fully absolutely right who score 140 can never asked to you and yourself also. Please faith in god and not spread the rumor
I faithing God….very much …I no rumor…I sad becoge my friends 146 ,150 ..I only 140…I not hurt u
Any source for practicing MCQs for Prelims?
I am railway servent,preparing for upsc..need of your guidance
Sir,
I am ph -1 category what is expected cut off this prelim-16
Dosto… M getting 111 in paper 1… Is there any chance for me to write mains???
UPSC Prelims 2016 results are out
UPSC PRE RESULTS OUT! QUALIFIED FOR MAINS. GETTING 114-117 ACCORDING TO SHANKAR IAS AND MRUNAL KEYS. OBC CAT