UGC NET Questions (Paper – 1)

The AR6 Synthesis stresses that risks do not rise in a step-wise manner at a single threshold but increase progressively with each additional fraction of a degree. As temperatures rise, more people and ecosystems face heat, floods, droughts and sea-level impacts. The report also warns that some systems, such as low-lying islands and certain ecosystems, may reach hard limits to adaptation. Thus, the statement that each increment of warming raises multiple risks is the closest to the scientific assessment.

Option A:
This option is incorrect because it treats 2°C as a magic line below which nothing changes. In reality, evidence shows substantial differences in impacts between 1.1°C, 1.5°C and 2°C. Therefore, this is an oversimplification.

Option B:
This option is correct as it reflects the idea that risks grow steadily with rising temperature and that adaptation cannot fully protect all systems. It highlights both the gradual increase in hazards and the existence of limits, which are key messages of AR6.

Option C:
This option wrongly assumes perfect adaptation, which the report explicitly rejects. Many societies lack resources and capacity, and some impacts cannot be fully adapted to. Hence, it underestimates climate risk.

Option D:
This option is incorrect because AR6 documents changes in health, ecosystems and cultural values along with economic losses. Focusing only on economic risks ignores large parts of the assessment.

A common conceptual expression in disaster studies is that risk results from the interaction between hazard and vulnerability,often simplified as risk equals hazard multiplied by vulnerability. This highlights that a severe hazard may not cause a disaster where vulnerability is low,and vice versa. It underscores the importance of reducing vulnerability through preparedness and mitigation. Therefore the description in the question corresponds to this multiplicative relationship.

Option A:
The expression risk equals hazard multiplied by vulnerability is not a precise mathematical law but a useful heuristic. It reminds planners that both natural processes and social conditions shape disaster outcomes. Because the stem mentions risk as a function of hazard,exposure and vulnerability,this formulation is the closest representation.

Option B:
Risk equals hazard minus capacity suggests a subtraction relationship that is not commonly used in standard disaster risk frameworks. It does not clearly convey the combined influence of hazard and vulnerability. Hence it is not the best answer.

Option C:
Risk equals hazard plus relief is conceptually incorrect,because relief is a response after a disaster,not a factor that creates risk. Relief actually aims to reduce suffering rather than increase risk. Therefore this option is inappropriate.

Option D:
Risk equals vulnerability divided by preparedness is also not a standard expression. While preparedness can reduce vulnerability,dividing one by the other does not capture the role of hazard itself. Thus it fails to summarise the widely used risk formulation referred to in the question.

The Economic Survey notes that India is highly vulnerable to climate impacts such as heatwaves, floods and changing monsoons, making adaptation a development necessity. At the same time, it points out that international finance flows for adaptation remain limited relative to needs. As a result, India has to allocate more domestic resources towards resilience, potentially crowding out other development priorities. This tension illustrates why climate finance and equity debates are central to discussions on people, development and environment.

Option A:
This option is incorrect because mitigation alone has not solved climate risks, and adaptation is still urgently required. The Survey explicitly brings adaptation “to the forefront” rather than dismissing it.

Option B:
This option is wrong as multiple documents highlight a shortfall, not a surplus, of adaptation finance. India and other developing countries argue that promised flows have not materialised adequately.

Option C:
This option misrepresents the empirical trends: analyses show adaptation-related expenditures have risen as a share of GDP, indicating increasing attention, not neglect.

Option D:
This option correctly captures the Survey’s emphasis that adaptation is both crucial and under-financed from international sources. It acknowledges the resulting pressure on domestic budgets and the need for supportive global climate finance arrangements.

Global carbon dioxide emissions are dominated by the combustion of coal, oil and natural gas for energy and transport. Power plants, industrial facilities and vehicles release huge quantities of CO2 when burning these fuels. Land-use change and other sources are important but smaller in comparison. Thus, the activity that contributes the most to anthropogenic CO2 emissions is fossil fuel use for energy, as stated in option B.

Option A:
Option A is incorrect because rice cultivation is more closely associated with methane emissions, not carbon dioxide as the primary gas. While methane is a potent greenhouse gas, the question specifically asks about CO2.

Option B:
Option B is correct since energy production and transport account for a major share of global CO2 emissions. Reducing dependence on fossil fuels in these sectors is central to climate mitigation strategies.

Option C:
Option C is incorrect as modern household aerosols mostly use propellants that are not major CO2 sources. Historically, they raised concerns about CFCs and ozone, not bulk CO2 emissions.

Option D:
Option D is incorrect because composting organic waste largely recycles carbon within the short-term biological carbon cycle. It does not create the massive additional CO2 associated with fossil carbon released from underground reserves.

Life expectancy at birth summarises the overall mortality conditions of a population into a single number. It indicates how long a newborn could expect to live on average under current mortality schedules. The stem repeats this definition almost verbatim,so life expectancy at birth is the correct choice. It is widely used as a key component of human development indices.

Option A:
Life expectancy at birth is calculated from life tables that incorporate death rates at different ages. It is a hypothetical measure but provides a clear picture of survival chances. Because the stem emphasises expected years of life for a newborn under current mortality, this option aligns perfectly.

Option B:
Infant mortality rate counts deaths of children under one year per thousand live births. Although related to health status,it focuses only on the first year of life rather than the entire lifespan described in the question.

Option C:
Age specific death rate gives the number of deaths per thousand people in a particular age group. It is one input into life table calculations but not the final summary measure requested in the stem.

Option D:
Total fertility rate measures the average number of children a woman would bear under current fertility rates. It is a demographic indicator but relates to births, not to expected years of life,so it cannot complete the sentence correctly.

Statements A, B, C, D and F are correct as they describe the legal framework, institutions, use of PIL and enforcement challenges. Statement E is false because environmental laws apply to both urban and rural areas. Hence A, B, C, D and F only is correct.

Option A:
Option A is incomplete since it omits F.

Option B:
Option B is correct because it includes A, B, C, D and F and excludes E.

Option C:
Option C is incorrect as it includes E (false).

Option D:
Option D is incorrect because it includes E and omits B.

Statements A, B, C and E are correct because they highlight curriculum integration, experiential learning, community engagement and diverse knowledge bases as components of environmental education. Statement D is false since complex environmental problems usually require interdisciplinary approaches. Statement F is false because online platforms and MOOCs can widen access to environmental content beyond campus boundaries. Thus, the combination including A, B, C and E and excluding D and F is correct.

Option A:
Option A is incorrect because it omits E and therefore ignores the value of indigenous knowledge and local case material in making learning context-specific and inclusive.

Option B:
Option B is correct as it combines curricular, institutional and community dimensions of environmental education and leaves out statements that restrict interdisciplinarity or dismiss online modes.

Option C:
Option C is incorrect as it includes F, which denies the role of online education, even though digital platforms are increasingly used for environmental learning.

Option D:
Option D is incorrect since it leaves out B and thereby neglects the importance of campus sustainability projects as living laboratories for students.

The modern global environmental agenda has evolved through a series of landmark conferences and agreements. The 1972 Stockholm Conference was the first major UN conference on the human environment. The 1992 Rio Earth Summit introduced Agenda 21 and the Rio Conventions. The Kyoto Protocol was adopted in 1997 to set binding emission reduction targets for developed countries. Later, the 2015 Paris Agreement created a global framework for climate action. This chronological progression is correctly represented in option C.

Option A:
Option A is incorrect because it reverses the actual historical order, starting with the most recent agreement and going backwards. Chronological sequences should move from earlier to later events.

Option B:
Option B is incorrect as it places Rio before Stockholm, whereas Stockholm came first in 1972 and Rio followed in 1992. This breaks the actual temporal order of conferences.

Option C:
Option C is correct since it places Stockholm 1972, Rio 1992, Kyoto 1997 and Paris 2015 in the right historical sequence. This reflects how international environmental governance has evolved over time.

Option D:
Option D is incorrect because it begins with Kyoto 1997, which came after both Stockholm and Rio. The order of earlier conferences is not respected in this option.

Statements A, C and D are correct and capture the key features of Integrated Water Resources Management. IWRM involves coordinated management across sectors, uses stakeholder participation to improve decisions and often relies on river-basin scale planning. Statement B is incorrect because ecological considerations are a central part of modern IWRM thinking, not something to be ignored. Thus, the combination containing A, C and D only is the correct answer.

Option A:
Option A is correct because it recognises the multi-dimensional and participatory nature of IWRM and excludes the statement that misrepresents its scope. It accurately reflects that IWRM balances human, economic and ecological needs at appropriate scales such as river basins.

Option B:
Option B is incorrect as it omits D, which is a valid statement regarding basin-level planning. Even though A and C are true, leaving out D gives an incomplete picture of how IWRM is operationalised in practice.

Option C:
Option C is incorrect because it includes all four statements, thereby accepting B as correct. Statement B falsely claims that IWRM ignores ecology, which directly contradicts the integrative vision of the approach.

Option D:
Option D is incorrect since it selects B, C and D as correct. While C and D are correct, B is not, and including it undermines the accuracy of the combination.

Statements A, B and D are correct because EIA is a predictive tool carried out before project approval, incorporates public inputs and proposes mitigation and monitoring plans. It helps decision makers anticipate and reduce negative environmental impacts. Statement C is incorrect since post-construction studies are more in the nature of monitoring or audits, not the core EIA itself. Hence, A, B and D together form the correct combination.

Option A:
Option A is incomplete as it lists only A and B and omits D. Without recognising the role of mitigation and monitoring in EIA reports, the description of the process is not full. Therefore, this option fails to capture all correct statements.

Option B:
Option B is correct because it includes the predictive, participatory and planning dimensions of EIA and excludes C, which misplaces the timing of EIA after construction. This reflects the standard definition and use of EIA in environmental management.

Option C:
Option C is incorrect since it includes C along with B and D. Accepting C would wrongly redefine EIA as a post-construction activity, which contradicts its preventive character.

Option D:
Option D is incorrect because it combines A and D with C and omits B. While A and D are true, including C and leaving out public consultation fails to represent EIA accurately and ignores its participatory dimension.

India had pledged that 50% of its installed power capacity would come from non-fossil sources by 2030. Achieving this threshold around 2025 means the country has crossed this milestone several years ahead of schedule. This reflects rapid growth in solar, wind and other non-fossil capacities, even though coal still plays a role in generation. The early achievement strengthens India’s credibility in climate negotiations and shows that development and decarbonisation can advance together when supported by policy and investment.

Option A:
This option is incorrect because reaching 50% non-fossil capacity does not mean that future renewable investments are unnecessary. Continued growth is needed to meet rising demand, reduce coal dependence and support net-zero aspirations.

Option B:
This option wrongly equates a capacity share milestone with net-zero emissions, which require much deeper transformations across all sectors. Even with 50% non-fossil capacity, fossil fuels still contribute significantly to emissions.

Option C:
This option correctly links the milestone with India’s earlier 2030 target and highlights that it has been achieved ahead of time. It recognises the significance of this development for both climate credibility and domestic energy planning.

Option D:
This option is incorrect because coal remains an important part of India’s generation mix even after the capacity milestone. The achievement reflects capacity shares, not a complete phase-out of coal.

Statements A, B, C and D are correct as they list key drivers of biodiversity loss and main strands of conservation responses. Habitat change, overuse and invasive species are major pressures, and protected areas, restoration and sustainable use are core strategies. E is wrong because biodiversity loss undermines ecosystem services and human well-being, and F is wrong since climate change is a significant driver shifting species distributions and extinction risks. Thus, the correct combination is A, B, C and D only.

Option A:
Option A is incorrect because it omits D, thereby ignoring the variety of conservation strategies employed to tackle biodiversity loss. Without D, the answer mentions only pressures and not the policy and management responses.

Option B:
Option B is incorrect since it includes E, which falsely claims that biodiversity loss has no implications for ecosystem services. Accepting E contradicts the central theme that biodiversity underpins services such as pollination, water regulation and cultural values.

Option C:
Option C is incorrect as it includes F, which denies the link between climate change and biodiversity loss, while also excluding A. Dropping habitat destruction, one of the most important drivers, makes the combination incomplete and conceptually weak.

Option D:
Option D is correct as it contains all four accurate statements on drivers and responses while excluding E and F, which downplay consequences and disconnect climate change from biodiversity loss. It matches the integrated understanding presented in the unit.

Statements A, B, D and E are correct as they deal with losses, augmentation, demand management and justice dimensions of urban water. Leakage and non-revenue water weaken systems, urban rainwater harvesting can supplement supplies, managing demand reduces stress and equitable access is central to justice. C is wrong because wetlands and lakes help store water and mitigate floods, and F is wrong since integrated management explicitly considers linkages between different parts of the urban water cycle. Hence, A, B, D and E only is the correct combination.

Option A:
Option A is incorrect as it omits E and thereby fails to reflect the equity aspect of urban water management. Without E, the answer focuses only on technical measures and leaves out social justice concerns.

Option B:
Option B is incorrect because it includes C, which dismisses the role of wetlands and lakes in mitigation and recharge. Accepting C contradicts hydrological understanding and urban planning practice.

Option C:
Option C is incorrect since it groups B, D, E and F and incorrectly accepts F, which claims integrated management ignores system interactions. By definition, integrated approaches do the opposite, so this option is conceptually flawed.

Option D:
Option D is correct because it brings together all the true statements and excludes the two false ones about wetlands and integration. It captures technical, environmental and equity aspects of urban water issues.

Statement C is clearly wrong because climate change can affect food production, availability and access, which in turn influences nutrition and health. Statements A, B and D are correct as they reflect established links between heatwaves and mortality, climate-sensitive disease vectors and disruption of health systems by extreme events. Since only C is incorrect, the combination that identifies C alone as wrong is the correct answer.

Option A:
Option A is incorrect because it treats both A and C as wrong, whereas statement A is accurate. Rising temperatures and more frequent heatwaves are associated with heat stress, dehydration and increased mortality, especially among vulnerable groups. Including a correct statement in the wrong set makes the option unacceptable.

Option B:
Option B is incorrect because it marks both C and D as wrong. While C is wrong, D is correct since floods, storms and other extremes can damage hospitals, supply chains and health infrastructure. Misclassifying D as wrong contradicts disaster and health studies.

Option C:
Option C is incorrect because it claims A, C and D are all wrong. A and D are correct descriptions of climate-related health impacts. By placing them in the wrong set, this option conflicts with widely accepted scientific assessments.

Option D:
Option D is correct because it isolates statement C as the only incorrect statement. It acknowledges that climate change can and does influence food security and nutrition, which C wrongly denies, while recognising that A, B and D accurately describe other health impacts.

Statements C and D are wrong, whereas A and B are correct. C is incorrect because behaviour change and community-led approaches are central to successful sanitation programmes. D is also false since toilets without water, safe containment and waste management do not ensure safe sanitation. Therefore, the wrong statements are C and D only.

Option A:
Option A is incorrect because it identifies A only as wrong, but A is actually true; open defecation is a recognised cause of faecal contamination of the environment. Misclassifying a correct statement as wrong leads to an incorrect option.

Option B:
Option B is incorrect since it treats both A and B as wrong. Statement B is true as unmanaged solid waste attracts vectors, and A is also true. Including true statements as wrong contradicts the question.

Option C:
Option C is incorrect because it groups A, B and C as wrong. While C is indeed wrong, A and B are correct, so this combination mislabels two accurate statements and cannot be accepted.

Option D:
Option D is correct because it identifies exactly the two wrong statements (C and D) and excludes the true statements (A and B).