UGC NET Questions (Paper – 1)

Ecofeminism highlights how the same structures that dominate and exploit nature also marginalise women, arguing that gender justice and ecological sustainability are interconnected.

Option A:
Incorrect; ecofeminism values the knowledge and experiences of women and communities and does not restrict environmental debates to scientists.

Option B:
Incorrect; ecofeminism does not blame women for environmental degradation; instead it critiques power relations that shape resource use.

Option C:
Correct; it captures the core ecofeminist idea of linked oppression of women and nature and the role of women’s empowerment in environmental protection.

Option D:
Incorrect; gender is an important lens because men and women often have different roles, responsibilities and vulnerabilities in relation to the environment.

Demographic dividend refers to the economic advantage that can arise when a country has a relatively large working age population and a smaller dependent population. Under favourable policy conditions,this age structure can boost productivity,savings and investment. The concept emphasises that population change can create a window of opportunity for faster growth. Therefore the term demographic dividend matches the description in the question.

Option A:
Demographic transition describes the shift from high birth and death rates to low birth and death rates over time. While demographic dividend can occur during part of this transition,the two terms are not identical. Demographic transition is a broader process,not specifically the economic opportunity mentioned in the stem.

Option B:
Population explosion refers to a very rapid increase in population without reference to age structure or economic benefits. It usually has negative connotations related to resource pressure. Hence it does not capture the growth potential associated with a favourable age structure.

Option C:
Urbanisation means the increasing proportion of people living in urban areas. Though it influences economic development,it is not defined by the balance between working age and dependent populations. Therefore it is not the correct term here.

Option D:
Demographic dividend specifically highlights the economic potential when the working age group dominates. It is this favourable dependency ratio,combined with appropriate policies,that can accelerate growth. This makes it the precise concept referred to in the question.

A biodiversity hotspot is defined as an area with exceptionally high species richness and endemism that is experiencing significant habitat loss. Such regions are given high priority for conservation action. The concept draws attention to places where protection can yield large biodiversity gains. Therefore the description in the question matches a biodiversity hotspot.

Option A:
Biosphere reserves are large areas designated to promote conservation,development and logistic support under UNESCO’s Man and the Biosphere Programme. While many have rich biodiversity,they are not defined specifically by endemism and threat level. Hence this term is less precise than biodiversity hotspot for the stem.

Option B:
A biodiversity hotspot,by definition,combines high endemic biodiversity with severe threat. It is this combination that makes them urgent conservation priorities. Because the question emphasises both richness and threat,this is the correct answer.

Option C:
National parks are protected areas aimed at conserving wildlife and natural ecosystems. However not all national parks meet the strict criteria of hotspots regarding endemism and habitat loss. Thus this option does not necessarily fit the definition given.

Option D:
Sanctuaries mainly focus on protecting particular species,especially animals,often allowing limited human use. They too may or may not qualify as hotspots. Therefore sanctuary is not the most accurate term for the region described in the question.

Statements A, B and C are correct: A defines carbon footprint, B defines ecological footprint and C notes their use as sustainability indicators. Statement D is incorrect because, although related, the two concepts are not identical; carbon footprint focuses on emissions whereas ecological footprint covers broader resource and land-use aspects. Option D includes D and omits B, so it is not the correct answer. The correct combination must include A, B and C only.

Option A:
Option A is correct because it includes the three true statements and excludes D. It distinguishes between the narrower emissions-focused carbon footprint and the broader land-demand-focused ecological footprint, while acknowledging their use in assessment. This aligns with the conceptual treatment of the indicators.

Option B:
Option B is incorrect as it leaves out B, which is essential for explaining ecological footprint, and thereby gives an incomplete picture.

Option C:
Option C is incorrect since it includes D, which wrongly treats the two indicators as identical and interchangeable. This ignores important conceptual differences between them.

Option D:
Option D is incorrect because it accepts D while omitting B. It fails to provide the proper definition of ecological footprint and conflates the two measures, making the combination unacceptable.

Solar energy is continuously supplied by the Sun and is not depleted by human use. As long as the Sun shines,the resource is available,which makes it renewable in nature. The stem clearly refers to using solar energy for electricity,so renewable is the correct classification. Therefore Option D is appropriate.

Option A:
Non renewable resources are finite and not replenished on human timescales,unlike solar energy.

Option B:
Fossil resources come from ancient organic matter; solar energy is sunlight,not fossil fuel.

Option C:
Nuclear energy depends on fission fuels like uranium,not solar radiation captured by PV panels.

Option D:
Renewable resources such as solar are naturally replenished and are central to clean energy transitions,matching the stem.

An environmental audit is a structured process used to assess how well an organisation is meeting environmental objectives and legal requirements. It examines practices,procedures and systems to identify gaps and opportunities for improvement. The stem describes exactly such a systematic and documented evaluation,so the correct term is environmental audit. Audits help organisations move toward better environmental management.

Option A:
An account records financial transactions and balances; it is not an evaluative process of environmental performance. Although environmental costs may be included in accounts, the term does not convey the review and verification component indicated in the question.

Option B:
An audit involves independent checking and verification of information and performance. In the environmental field,it covers compliance with regulations and internal policies. Because the stem highlights systematic and objective evaluation,this explanation supports the choice of environmental audit.

Option C:
A statement is a declaration or report,which may summarise performance but is not itself a review process. It can be one output of an audit but does not capture the full evaluative exercise.

Option D:
A licence grants permission to operate under certain conditions, such as effluent limits. While audits may check compliance with licence terms,the licence itself is not the review process mentioned in the stem.

The strengthened NCAP seeks to lower PM10 and PM2.5 concentrations in designated non-attainment cities by at least 40% by 2025–26 compared to 2017. This more ambitious target recognises the serious health impacts of air pollution in Indian cities. It pushes local and state authorities to implement stronger measures on transport, industry, waste burning and dust control. The target also aligns with broader sustainable-development and public-health objectives.

Option A:
This option underestimates the ambition of the revised NCAP target and therefore does not match policy documents. It might resemble earlier, less stringent goals.

Option B:
This option is still below the strengthened ambition; while 20% was an initial benchmark, it has been raised to drive faster improvement.

Option C:
A 30% figure again understates the strengthened goal; exam questions often test awareness of such numerical changes.

Option D:
This option correctly states the 40% reduction target and therefore best reflects the updated NCAP objective.

Statements A, B and D are correct: public universities rely substantially on government grants, they may diversify resources through fees/projects/donations/endowments within norms, and diversification should align with institutional mission and priorities. Statements C, E and F are incorrect because public funding does not remove accountability, public universities can receive donations/endowments under rules, and external projects are not automatically incompatible with quality.

Option A:
Option A is correct because it includes all and only the true statements A, B and D while excluding C, E and F.

Option B:
Option B is incorrect because it includes C, which wrongly claims public funding removes the need for efficiency and transparency.

Option C:
Option C is incorrect because it omits A and thus ignores the major role of government grants in public university funding.

Option D:
Option D is incorrect because it includes C (false) and omits A (true), so it mixes wrong and incomplete statements.

Statements A, B and D are correct because they highlight environmental impacts, the role of management and closure plans and the risks of illegal mining. Statement C is incorrect since stakeholder consultation and community engagement are widely recognised as essential for fair and informed decisions about mining. Therefore, the combination A, B and D only is correct.

Option A:
Option A is incomplete as it omits D, which correctly draws attention to the particularly harmful nature of illegal and unregulated mining. Without D, the set of correct statements is not complete.

Option B:
Option B is incorrect because it includes only B and D and leaves out A, which accurately describes typical environmental impacts of mining. Excluding A weakens the conceptual coverage.

Option C:
Option C is incorrect as it treats all four statements as correct, thereby accepting C, which wrongly dismisses stakeholder engagement. The presence of this false statement invalidates the combination.

Option D:
Option D is correct since it groups the three true statements and excludes the clearly false C. It reflects both the environmental risks and governance measures associated with mining activities.

Solar pumps allow farmers to access irrigation without relying entirely on diesel or unstable grid supply, lowering operating costs and local pollution. When combined with sound groundwater governance and crop planning, they can raise yields and incomes while keeping extraction within sustainable limits. They also reduce pressure on distribution companies that otherwise subsidise agricultural electricity heavily.

Option A:
This option is incorrect because solar pumps are introduced precisely to reduce diesel dependence.

Option B:
This option correctly highlights the multiple co-benefits of solar pumps and notes the importance of managing groundwater sustainably.

Option C:
Solar pumps alone cannot “automatically” solve over-extraction; institutional and regulatory measures are still needed.

Option D:
Decentralised pumps can actually reduce the need for long rural feeders, thereby lowering transmission losses.

The stratospheric ozone layer acts as a protective shield that absorbs most harmful ultraviolet-B radiation from the sun. When this layer is depleted by chemicals like chlorofluorocarbons, more UV-B reaches the Earth’s surface. This leads to increased risks of skin cancer, cataracts, immune suppression in humans and damage to crops and marine ecosystems. Therefore, the primary environmental problem associated with ozone depletion is enhanced UV-B radiation, as stated in option A.

Option A:
Option A correctly links ozone depletion with increased UV-B radiation and the associated health and ecological impacts. It reflects scientific findings that ozone holes allow more biologically harmful radiation to pass through the atmosphere. This option aligns with the way the issue is presented in environmental studies and UGC NET materials.

Option B:
Option B is incorrect because the ozone layer has little effect on visible light, which largely passes through the atmosphere regardless of ozone concentration. Changes in ozone do not significantly alter visible light levels at the surface.

Option C:
Option C is incorrect since ozone depletion is not directly related to greenhouse gas concentrations. In fact, some ozone-depleting substances are also greenhouse gases, so their reduction may slightly reduce warming, but that is not the primary effect.

Option D:
Option D is incorrect because acid rain is mainly caused by sulphur dioxide and nitrogen oxides reacting with water vapour, not by stratospheric ozone depletion. The two phenomena are distinct atmospheric problems.

Carbon dioxide is the most significant anthropogenic greenhouse gas in terms of total emissions. It is released in large quantities through burning coal,oil and natural gas and through deforestation. Its long atmospheric lifetime and high volume make it the main driver of human induced climate change. Therefore carbon dioxide best fits the description in the question.

Option A:
Oxygen is a major component of the atmosphere but it is not a greenhouse gas. It does not trap outgoing infrared radiation in the way greenhouse gases do. Hence it cannot be the primary greenhouse gas mentioned in the stem.

Option B:
Nitrogen makes up the largest fraction of Earth’s atmosphere. However it is largely inert and does not act as a greenhouse gas in its diatomic form. Therefore it is not responsible for the described warming effect.

Option C:
Ozone in the troposphere acts as a greenhouse gas and pollutant,but its concentration is much lower than that of carbon dioxide. It is important locally but is not the primary anthropogenic greenhouse gas globally. Thus it is not the best answer here.

Option D:
Carbon dioxide is produced by combustion processes in power plants,industry and transport as well as by land use changes. It accumulates in the atmosphere and enhances the greenhouse effect. This makes it the central gas referred to in the question.

Statements A, B and C are correct: biodiversity provides a range of products to communities, supports resilience to shocks and can be conserved in ways that recognise rights and livelihoods. Statement D is incorrect because biodiversity underpins economic activities and cultural traditions as well as ecological processes. The correct combination is therefore A, B and C only.

Option A:
Option A is incomplete as it leaves out C, which accurately notes that conservation policies can and should consider customary rights and livelihoods. Without C, the social-justice dimension is missing.

Option B:
Option B is incorrect because it includes D along with A and B. By treating D as correct, it denies the economic and cultural significance of biodiversity, which is inconsistent with the syllabus.

Option C:
Option C is correct since it gathers the three true statements and excludes the false one, presenting a holistic view of biodiversity’s ecological, economic and social importance.

Option D:
Option D is incorrect because it includes D, which is wrong, and omits A, thereby downplaying direct livelihood dependence on biodiversity.

The distinction between weather and climate is based mainly on time scale and averaging. Weather describes the conditions of the atmosphere at a given place and time, such as a particular day or week. Climate describes the statistical pattern of weather over a long period, usually thirty years or more. This definition is widely accepted in meteorology and environmental studies, so the statement in option A correctly captures the difference.

Option A:
Option A correctly contrasts short-term variability with long-term averages. It emphasises that daily changes like rain today and sunshine tomorrow belong to weather, while long-term trends like monsoon patterns belong to climate. This understanding is essential when interpreting news about climate change, which focuses on shifts in long-term patterns rather than single events.

Option B:
Option B is incorrect because equating weather and climate ignores their different time scales. If they were the same, one cold day could be used to deny long-term warming trends, which is scientifically wrong. The distinction is fundamental in climate science.

Option C:
Option C is incorrect since both weather and climate include many elements such as temperature, rainfall, humidity, wind and pressure. Limiting weather to temperature and climate to rainfall oversimplifies atmospheric processes and leads to confusion.

Option D:
Option D is incorrect because the difference between weather and climate is not based on which academic discipline studies them. Both geography and physics contribute to meteorology and climatology, and the concepts are defined independently of institutional boundaries.

A green belt is a zone of protected open land, often with forests,parks or agriculture,around an urban area. Its purpose is to check uncontrolled urban expansion,conserve natural landscapes and provide recreational spaces. The stem mentions a ring of open land around a city with ecological benefits,which fits the concept of a green belt exactly. Hence green belt is the correct term.

Option A:
Green belts are used as planning tools to contain cities within defined boundaries and to preserve peri urban ecosystems. They can also help moderate urban climate and improve air quality. These functions align closely with the description in the question.

Option B:
An industrial corridor is a designated area for concentrated industrial development,usually with high infrastructure and transport connectivity. It tends to attract more construction and pollution rather than limit sprawl,so it is the opposite of what the stem describes.

Option C:
A transport hub is a node where multiple transport modes or routes converge,such as a major railway station or bus terminal. It is typically built up and does not refer to protective open land surrounding a city.

Option D:
A free trade zone is an area where goods can be imported,stored and re exported with minimal customs restrictions. It is an economic instrument and not an environmental or planning measure to preserve open land,so it does not match the stem.