UGC NET Questions (Paper – 1)

Statements D and F are wrong because ozone depletion does affect terrestrial plants, phytoplankton and food webs, and the ozone layer has not yet fully recovered, requiring ongoing compliance with treaties. A, B, C and E are correct: the ozone layer filters UV-B, excess exposure increases health risks, the Montreal Protocol guides phase-out of harmful substances and protective behaviours reduce risk. Therefore, the correct answer is the combination that identifies D and F as the wrong statements.

Option A:
Option A is correct since it pinpoints both D and F as misrepresenting scientific and policy realities, while accepting A, B, C and E, which align with current understanding of ozone protection and UV impacts. It reflects both ecological and human health dimensions.

Option B:
Option B is incorrect because it singles out only D and ignores F, even though claiming treaties are no longer needed is clearly inconsistent with ongoing monitoring and gradual recovery timelines.

Option C:
Option C is incorrect as it marks only F as wrong and overlooks D, which denies the ecological consequences of ozone depletion. By failing to include D, it neglects an important environmental dimension of the issue.

Option D:
Option D is incorrect because it adds C to the list of wrong statements, even though C correctly notes that the Montreal Protocol has been central in guiding the replacement of ozone-depleting substances. Including C among wrong statements contradicts widely accepted historical facts.

EIA is a planning tool used to anticipate how a project might affect air, water, land, ecosystems and people. By examining alternatives and suggesting mitigation measures, it helps decision makers weigh environmental costs alongside economic and social benefits. Effective EIAs include public consultation and can lead to project redesign, conditions or even rejection.

Option A:
Option A is incorrect because EIA is not meant to rubber-stamp all projects; it can recommend modifications or cancellation.

Option B:
Option B is correct as it summarises the predictive and evaluative role of EIA prior to project approval.

Option C:
Option C is incorrect; EIA complements, not replaces, economic analyses. Both are needed for balanced appraisal.

Option D:
Option D is incorrect since private and community actors can also propose projects, which may still require EIA depending on regulations.

Stratospheric ozone absorbs much of the Sun’s harmful UV-B radiation; when the ozone layer thins, more UV-B reaches the surface, increasing risks of skin cancers, cataracts and immune system suppression.

Option A:
Correct; it directly links ozone depletion to greater UV-B exposure and the associated health effects such as skin cancer and cataracts.

Option B:
Incorrect; indoor air pollution is mainly caused by fuels and ventilation conditions, not by changes in the ozone layer.

Option C:
Incorrect; tectonic activity and earthquakes are unrelated to atmospheric ozone levels.

Option D:
Incorrect; ozone depletion does not cause greenhouse gases to disappear; ozone issues and climate change are distinct though related problems.

The ecological footprint combines the area needed to provide the resources a population consumes and to absorb its wastes and emissions, and then compares this demand with available biocapacity.

Option A:
Incorrect, because territorial size alone says nothing about how intensively resources are used or wastes are generated.

Option B:
Correct, as this definition captures both resource use and waste absorption in terms of biologically productive area.

Option C:
Incorrect, since population size without information on consumption patterns cannot indicate environmental pressure.

Option D:
Incorrect, because species richness is a biodiversity metric, not a direct measure of human demand on ecosystems.

The precautionary principle acknowledges that environmental systems are complex and scientific understanding is often incomplete. It states that where potential harm is serious or irreversible, waiting for perfect certainty can result in unacceptable damage. Decision-makers should therefore take reasonable, cost-effective preventive measures even when some scientific questions remain open.

Option A:
Option A is incorrect because it demands complete scientific certainty before acting, which is exactly the approach the precautionary principle argues against.

Option B:
Option B is correct because it closely matches widely accepted formulations of the precautionary principle used in international environmental agreements.

Option C:
Option C is incorrect as it gives priority only to economic growth and sidelines environmental risks, contrary to the principle’s insistence on protecting the environment under uncertainty.

Option D:
Option D is incorrect since the precautionary approach responds to uncertainty by urging caution and preventive action, not by ignoring environmental concerns.

Statements A, C and D correctly capture core ideas in disaster risk reduction. Statement A presents the standard formulation of disaster risk as a function of hazard, vulnerability and capacity, C lists important non-structural measures and D stresses mainstreaming risk reduction into development planning. Statement B is incorrect because non-structural measures are also crucial, and statement E is wrong as preparedness involves planning, training and mitigation-oriented actions, not just response. Therefore, the combination that includes A, C and D only is the correct answer.

Option A:
Option A is incorrect because it includes A and C but excludes D. While A and C are correct, D is also a valid statement since integrating disaster risk reduction into development plans significantly lowers future vulnerabilities and losses. Leaving out a correct statement means this combination is incomplete.

Option B:
Option B is incorrect because it adds statement E to A and C. Statement E wrongly restricts disaster preparedness to emergency response, ignoring its preventive and capacity-building aspects. The presence of an incorrect statement makes this combination unacceptable.

Option C:
Option C is correct because it groups A, C and D, all of which align with widely accepted disaster management frameworks. It recognises the multi-dimensional nature of risk, the importance of non-structural measures and the need to integrate risk reduction into development. Since it excludes the incorrect statements B and E, this combination fully satisfies the requirement.

Option D:
Option D is incorrect because it includes statements A, B, C and D. Although A, C and D are correct, B is wrong because structural measures are not the only tools for risk reduction; behavioural, institutional and policy measures are equally important. Including a false statement makes this combination invalid.

Statements A, B, C, D and E are all correct and describe multiple links between nutrition, food safety and environment. Chemical contamination and poor water, sanitation and hygiene affect health, while diversity, safety and climate-related yield changes shape nutritional outcomes and risks. Regulations and monitoring are key tools in preventing food-borne illness. F is wrong because household storage and preparation practices clearly interact with environmental health conditions, influencing contamination and disease. Thus, the correct combination includes A through E only.

Option A:
Option A is correct since it recognises the broad set of true statements and excludes only F, which denies the role of household practices. It reflects an integrated view of nutrition that considers environment, climate, regulation and household behaviour.

Option B:
Option B is incorrect because it omits E, ignoring how water quality and sanitation impact nutrition, especially in children. Without E, the answer set fails to incorporate the WASH–nutrition connection.

Option C:
Option C is incorrect as it includes F and omits A. Accepting F contradicts public health guidance on food hygiene, and dropping A overlooks the risks posed by pesticide and heavy metal contamination.

Option D:
Option D is incorrect since it leaves out B and includes only A, C, D and E. Although the four included statements are true, excluding B means the answer does not fully acknowledge the role of dietary diversity and access in nutrition.

Climate adaptation focuses on modifying systems and behaviours to cope with the effects of climate change. Examples include building flood defences,changing crop varieties and improving health systems. The stem clearly describes adjustment to impacts,so adaptation is the correct term.

Option A:
Mitigation involves actions to reduce greenhouse gas emissions or enhance sinks and addresses the causes rather than the consequences of climate change. While complementary,it is conceptually distinct from the impact focused measures in the question.

Option B:
Adaptation aims to reduce vulnerability and increase resilience of societies and ecosystems. It may also enable them to benefit from new opportunities such as longer growing seasons in some regions. This emphasis on adjustment matches the stem.

Option C:
Compensation would involve payments or assistance for losses and damages due to climate change. It is a debated issue in climate negotiations but is not the term for proactive adjustment measures.

Option D:
Geoengineering refers to deliberate large scale interventions in the climate system, such as solar radiation management. It goes far beyond local or sectoral adjustments and does not fit the description in the question.

The 3R hierarchy gives priority to options that prevent or minimise waste at source. "Reduce" comes first, as using less material and energy avoids waste altogether. "Reuse" comes next, because using an item again extends its life before it becomes waste. "Recycle" is still useful but comes last among the three because it requires collection and processing. Hence, the preferred order is Reduce → Reuse → Recycle.

Option A:
Option A is incorrect because starting with recycle ignores the greater benefit of reducing consumption. Recycling helps, but it does not avoid production in the first place.

Option B:
Option B is correct as it lists reduction, then reuse, then recycling. This sequence is promoted in policy and education for waste minimisation.

Option C:
Option C is incorrect; putting reuse first still overlooks the importance of avoiding unnecessary items. Prevention is better than reuse.

Option D:
Option D is incorrect because it begins with recycle again. While both reduce and reuse appear, the order does not reflect the standard 3R hierarchy.

Human development is defined as a process of enlarging people’s choices, including health, education and decent living conditions. It moves focus away from income alone to capabilities and freedoms. The stem describes this shift from mere income growth to expanding choices,so human development is the correct term.

Option A:
Human development considers people both as the means and the end of development. It seeks to create conditions where individuals can lead long,healthy and creative lives. Because the question highlights choices and capabilities, this option accurately names the concept.

Option B:
Structural development is not a standard term in development discourse and does not specifically refer to capabilities. It might suggest changes in economic structure but does not capture the people centred focus of the stem.

Option C:
Market driven development implies reliance on market forces to guide economic growth. It may increase income but often ignores distribution and human capability issues. Hence it does not match the approach described.

Option D:
Export led development prioritises expanding export sectors as the main engine of growth. It is an economic strategy without inherent emphasis on human freedoms and capabilities,so it is not suitable for the blank.

Global warming is driven largely by enhanced greenhouse gas concentrations that trap heat, altering climate patterns. Ozone depletion, on the other hand, involves breakdown of ozone molecules in the stratosphere by chlorine and bromine released from substances such as CFCs and halons. While the two issues interact in complex ways, they are scientifically distinct problems with different primary causes, effects and treaties.

Option A:
Option A is incorrect because global warming and ozone depletion are not identical; conflating them leads to conceptual confusion and wrong policy responses.

Option B:
Option B is correct as it clearly separates the temperature-related phenomenon linked to greenhouse gases from the UV-shielding issue linked to ozone chemistry and CFCs.

Option C:
Option C is incorrect; volcanic eruptions and earthquakes are not the sole or main causes of these global environmental changes.

Option D:
Option D is incorrect because ozone depletion actually increases, not reduces, UV-B reaching the surface.

The Limits to Growth concept,popularised by the Club of Rome study,uses systems models to argue that exponential growth in population,industry and resource use cannot continue indefinitely on a finite planet. It warns that surpassing ecological limits could trigger sudden decline or collapse. The idea calls for stabilising both economic and population growth within sustainable bounds. Thus the description in the question clearly refers to limits to growth.

Option A:
The tragedy of the commons explains how individual users acting in self interest can over exploit a shared resource. While related to resource depletion,it does not explicitly model global population and economic growth overshooting planetary limits. Therefore it is not the exact concept described.

Option B:
Demographic dividend emphasises economic opportunities created by a favourable age structure,not planetary boundaries. It is generally seen as positive and does not focus on ecological collapse. Hence it does not match the statement in the stem.

Option C:
Ecological modernisation suggests that environmental protection and economic growth can be reconciled through technological innovation and institutional reform. It is more optimistic than the limits to growth perspective. Thus it is not the term intended by the question.

Option D:
Limits to Growth specifically examines interactions among population,industrial output,resource use and pollution. It concludes that without deliberate stabilisation policies,these factors may exceed planetary carrying capacities. This argument is exactly what the stem summarises.

The first Global Stocktake assessed collective progress and found a significant gap between current efforts and pathways compatible with 1.5°C. Its decision text calls on parties to contribute, according to their circumstances, to transitioning away from fossil fuels in energy systems in a just, orderly and equitable manner. It also highlights the need to triple global renewable energy capacity and double the rate of energy-efficiency gains by 2030. These quantified signals are intended to guide more ambitious national plans and investment decisions in the coming years. (UNFCCC)

Option A:
Option A is incorrect because the stocktake clearly concludes that present policies and pledges are insufficient; it does not declare that the world is safely on track for 1.5°C. Instead, it emphasises the urgency of closing the ambition and implementation gaps. Treating existing action as “enough” would misread its core message.

Option B:
Option B is wrong since delaying energy transitions until after 2050 would make the temperature goals unattainable. The stocktake specifically stresses accelerated action this decade, including rapid scaling of renewables and efficiency, not postponement.

Option C:
Option C is correct as it reflects both the qualitative direction (transitioning away from fossil fuels) and the quantitative benchmarks (tripling renewables and doubling efficiency) that feature prominently in the COP28 Global Stocktake decision. It captures how mitigation, technology and equity considerations were woven together to guide future national contributions.

Option D:
Option D is incorrect because the stocktake reaffirms, rather than abandons, the Paris temperature limits. It treats 1.5°C as a critical guardrail and frames its recommendations around keeping that goal within reach, even if the window is narrowing.

Disaster preparedness encompasses measures undertaken before a hazard strikes to ensure that people,systems and institutions can respond quickly and effectively. These include contingency planning,education,stockpiling and drills. The stem lists exactly such advance actions,so preparedness is the correct term. It is a critical phase of the disaster management cycle.

Option A:
Recovery occurs after a disaster and involves restoring livelihoods,services and infrastructure. It is a post event phase and therefore does not match the pre event focus of the question.

Option B:
Preparedness builds capacities so that warnings are heeded and response systems function smoothly when a hazard occurs. It reduces casualties and damages by ensuring that everyone knows what to do. This explanation aligns directly with the stem’s description.

Option C:
Relief refers to the immediate assistance given after a disaster,such as food,water,medical care and shelter. It follows the impact phase and therefore cannot fill the blank referring to advance actions.

Option D:
Reconstruction is the long term process of rebuilding homes,roads and other facilities after the emergency phase is over. It is not concerned with pre disaster planning,so it is not the right answer.

Statements A, B and D are correct because they describe well-known impacts of global warming on coasts, agriculture, water and cryosphere. However, statement C is incorrect as research indicates that global warming can influence the frequency and intensity of certain extreme weather events such as heatwaves and heavy rainfall. Since option B treats C as correct along with the other statements, it cannot logically be the correct answer. The correct combination must therefore include only A, B and D, excluding C.

Option A:
Option A is correct because it gathers together A, B and D, all of which are supported by climate science, while omitting C. It recognises coastal risks, shifts in agriculture and water stress and the implications of glacier melt. By excluding the wrong statement, it matches the question requirement.

Option B:
Option B is incorrect as it treats all four statements as correct. It incorrectly endorses C, which denies any influence of global warming on extreme events, contradicting current scientific assessments. Consequently, this option is invalid.

Option C:
Option C is incorrect because it includes C alongside B and D and leaves out A. Apart from omitting a correct statement about sea-level rise, it wrongly accepts C, thereby misrepresenting the climate change–extreme weather link.

Option D:
Option D is incorrect as it includes A, C and D and omits B. It still retains the false statement C and thus fails to present an accurate set of correct statements about global warming impacts.