UGC NET Questions (Paper – 1)

In the Millennium Ecosystem Assessment framework, pollination is classified as a regulating service because it regulates plant reproduction and crop yields without itself being a harvested product.

Option A:
Incorrect; timber is a tangible product taken from ecosystems and is therefore a provisioning service.

Option B:
Correct; pollination is a regulating service that supports agricultural production by mediating an ecological process.

Option C:
Incorrect; spiritual and recreational benefits are cultural services, reflecting non-material values people derive from ecosystems.

Option D:
Incorrect; genetic resources provide raw biological material for breeding and biotechnology and are classed as provisioning services.

Mission LiFE identifies and celebrates “Pro Planet People” as those who consciously choose environment-friendly behaviours. These include actions such as saving energy and water, reducing single-use plastics and choosing sustainable mobility. By highlighting such individuals and communities, the initiative aims to create social norms that favour low-impact lifestyles and make sustainable choices aspirational. This people-centric framing links environmental protection directly to everyday development and well-being. (missionlife-moefcc.nic.in)

Option A:
This option is incorrect because the LiFE framework does not restrict the idea of Pro Planet People to government officials. While officials can also adopt sustainable lifestyles, the concept explicitly extends to all citizens, communities and organisations that practise environment-conscious behaviour. Limiting it to a narrow group would reduce the transformative potential of the movement.

Option B:
This option correctly reflects the LiFE idea that anyone, individually or collectively, can become a Pro Planet Person by adopting environment-friendly habits. It stresses that lifestyle choices—such as reducing waste, conserving resources and supporting sustainable products—are central to climate and environmental solutions. The term therefore recognises active practitioners of sustainable lifestyles, not just passive beneficiaries of policies.

Option C:
This option is wrong because it treats everyone as Pro Planet People irrespective of behaviour. LiFE, however, is about nudging and recognising specific sustainable practices, so the term carries a behavioural meaning. Calling all citizens Pro Planet People would dilute the incentive to actually change habits.

Option D:
Companies investing in renewables can contribute significantly to decarbonisation, but the LiFE concept of Pro Planet People is not limited to corporate investors. It focuses on lifestyle and consumption choices, not just on capital expenditure decisions. Therefore, restricting the term to such companies would be misleading.

Afforestation involves establishing forests on lands that have not been forested for a long time or ever in recent history. It is used to increase forest area,store carbon and restore ecological functions on degraded lands. The stem clearly mentions planting trees on land not previously forested,which is the defining feature of afforestation. Therefore afforestation is the correct option.

Option A:
Deforestation is the removal of forest cover,usually for agriculture,settlement or logging. It leads to loss of biodiversity and carbon storage. Since the question describes planting trees rather than cutting them,deforestation is the opposite of what is intended.

Option B:
Reforestation refers to re planting trees on lands that were recently forested but have been cleared or degraded. It restores former forest areas but does not necessarily involve new forest establishment on non forest land. Hence it does not precisely match the stem.

Option C:
Afforestation contributes to increasing overall forest area beyond current levels and can help combat desertification and climate change. Because the stem emphasises new forest creation on non forest land,this option captures the concept accurately.

Option D:
Clear felling is a logging method in which most or all trees in an area are cut at once. It is a harvesting technique and not a planting or restoration activity,so it does not fit the description.

Unplanned urbanisation refers to city growth that occurs without adequate planning,regulation and infrastructure provision. Such growth often produces slums,traffic problems and severe environmental pollution. It reflects a mismatch between population influx and urban management capacity. Therefore the description in the question accurately characterises unplanned urbanisation.

Option A:
Unplanned urbanisation typically lacks proper land use zoning and basic services. As a result,informal settlements arise and environmental quality deteriorates. This pattern explains the combination of slums and pollution highlighted in the stem.

Option B:
Sustainable urban design aims to create environmentally friendly,liveable and well serviced cities. It emphasises planning and efficient infrastructure,which is the opposite of the chaotic conditions described. Hence it is not the right answer.

Option C:
Rural reconstruction concerns improving living conditions and productivity in rural areas. While related to development,it does not refer to problems in rapidly growing cities. Therefore it is not appropriate for the question.

Option D:
Smart growth promotes compact,mixed use and transit oriented urban development to reduce sprawl and environmental impacts. It is usually seen as a positive planning approach,rather than the problematic situation outlined in the stem.

The urban heat island effect refers to cities being significantly warmer than nearby rural areas. This occurs because concrete and asphalt absorb heat,vegetation is reduced and waste heat is released from buildings and vehicles. The stem mentions higher temperatures in built up city areas relative to rural surroundings,which is the classic definition of a heat island. Therefore “heat island” is the correct term.

Option A:
Cool island would mean the city is cooler than its surroundings,which is opposite to the observed phenomenon. Urban areas are generally warmer,so this term does not fit the description in the question.

Option B:
Heat island captures the concentration of heat in urban cores caused by surface properties and human energy use. It matches exactly the pattern of higher city temperatures compared to rural areas described in the stem.

Option C:
Fog island is not a standard climatological concept linked to urbanisation. It does not describe temperature differences caused by built up surfaces and therefore is not appropriate here.

Option D:
Rain island is sometimes used informally to suggest altered rainfall patterns,but it is not the recognised term for the temperature effect described. It would confuse rather than clarify the concept in the stem.

Statements A, B and D are correct: IPM reduces chemical dependence, conservation tillage with organic matter improves soils and diversification and rotation reduce pests and risks. Statement C is incorrect because sustainable agriculture does not always mean zero external inputs; rather, it emphasises judicious, efficient and environmentally sound use. Thus, the right combination is A, B and D only.

Option A:
Option A is incomplete as it omits D, which correctly notes the role of diversification and rotation in sustainable systems. Without D, the picture of sustainable agriculture is partial.

Option B:
Option B is correct because it assembles all three valid statements and excludes C, which presents an extreme and inaccurate view of sustainability. It reflects the balanced approach promoted in the syllabus.

Option C:
Option C is incorrect since it accepts C as correct along with B and D. Including the idea that any external input is incompatible with sustainability misrepresents agricultural science.

Option D:
Option D is incorrect because it groups A with C and D and leaves out B. While A and D are true, accepting C and excluding B on soil health makes the combination logically inconsistent.

The HPI was designed to complement income poverty indicators by focusing on basic human capabilities. It combined measures related to survival, education and minimum living standards to show how many people lacked essential opportunities for a decent life.

Option A:
Option A is incorrect because the index did not look only at inequality among the rich; it focused on deprivations among the broader population.

Option B:
Option B is incorrect since military expenditure is a budget choice, not a direct measure of human poverty.

Option C:
Option C is correct as it highlights longevity, knowledge and a decent standard of living as central to the HPI and the human development approach.

Option D:
Option D is incorrect because counting billionaires says little about how many people are deprived of basic capabilities.

In-situ conservation refers to protecting species in their natural habitats, where they have evolved and interact with other components of the ecosystem. Protected areas such as national parks, wildlife sanctuaries and biosphere reserves are classic examples. Biosphere reserves aim to conserve entire ecosystems, including habitats, species and genetic diversity, within their original location. Therefore, option C correctly represents in-situ conservation of biodiversity.

Option A:
Option A is incorrect because botanical gardens, though important for conservation, maintain plants outside their natural habitats. This is a form of ex-situ conservation.

Option B:
Option B is incorrect as seed banks store genetic material away from the natural environment. They preserve diversity but do so ex-situ, not in-situ.

Option C:
Option C is correct since biosphere reserves conserve living organisms and their ecosystems where they naturally occur. This allows ongoing evolutionary processes and species interactions to continue, which is central to in-situ conservation.

Option D:
Option D is incorrect because zoos house animals in captivity away from their natural ecosystems. Zoos are typically cited as ex-situ conservation measures.

Statements A, B and D are correct and highlight the links between women’s education, fertility decline and better environmental management when women participate in decision-making. Statement C is incorrect because women’s empowerment is widely recognised as central to sustainable development and environmental governance. Hence, the combination that includes A, B and D and excludes C is the correct answer.

Option A:
Option A is incorrect because, although A and B are true, it omits D which correctly points to the positive role of women in community resource management. Without D, the view of women’s contribution to sustainability is incomplete.

Option B:
Option B is incorrect as it selects only B and D and leaves out A. While B and D are correct, A is also true in emphasising environment-friendly practices at the household level. Excluding A means the full picture of empowerment effects is not presented.

Option C:
Option C is correct because it groups all three true statements and rejects the false claim in C. It reflects the multi-layered importance of women’s empowerment for demographic, social and environmental outcomes.

Option D:
Option D is incorrect since it includes C, which wrongly denies the connection between empowerment and sustainable development. Mixing a false statement with true ones makes the option invalid.

In the late expanding stage, mortality has already fallen to low levels, but fertility is now also declining. Population continues to grow, yet at a slower pace than in the earlier explosive phase. The age structure gradually shifts, with a higher proportion of working-age adults. Therefore, the combination of declining birth rate and low death rate with slowing growth correctly represents this stage.

Option A:
Option A describes the high stationary stage, where both birth and death rates are high and growth is low, typical of pre-transition societies.

Option B:
Option B fits the early expanding stage, when death rates fall quickly but birth rates remain high, leading to rapid population growth.

Option C:
Option C is correct because it captures the key features of the late expanding phase: reduced fertility, low mortality and decelerating but positive growth.

Option D:
Option D corresponds to the low stationary stage, where both fertility and mortality are very low and population size becomes stable or even declines.

Sanitation includes safe disposal of human excreta and waste water to protect health and the environment. Providing toilets and eliminating open defecation reduce contamination of soil and water and break disease transmission pathways. The stem clearly describes such actions,so sanitation is the appropriate term. Therefore Option D is correct.

Option A:
Aesthetics may improve indirectly,but the primary purpose of toilets is hygiene and health,not appearance.

Option B:
Production relates to economic output and is not the primary objective of ending open defecation.

Option C:
Commerce concerns trade and business activity and does not capture the hygiene and disease prevention focus here.

Option D:
Sanitation directly refers to safe excreta disposal and improved hygiene through toilets,matching the stem precisely.

Carbon sequestration involves capturing carbon dioxide from the atmosphere or preventing its release and storing it in long-lived reservoirs. Natural sequestration occurs in forests, soils and oceans as carbon is taken up and retained in biomass and sediments. Technological approaches seek to store captured carbon dioxide in deep geological formations. Thus, defining sequestration as long-term storage of carbon in vegetation, soils, oceans or geological formations accurately conveys the concept.

Option A:
Option A is incorrect because burning forests releases stored carbon back into the atmosphere, increasing greenhouse gas concentrations. This is the opposite of sequestration, which aims to reduce or stabilise atmospheric levels.

Option B:
Option B is incorrect since carbon trading is a policy mechanism for allocating emission rights and does not itself store carbon. Sequestration may generate tradable credits, but the trade is distinct from the physical process of storage.

Option C:
Option C is correct as it recognises both biological and geological sinks. Enhancing these sinks is a key component of mitigation strategies that complement emission reduction efforts.

Option D:
Option D is incorrect because measuring carbon content is an accounting activity. While necessary for inventories and monitoring, it does not itself remove or store carbon from the atmosphere.

The Glasgow Climate Pact was the first COP cover decision to explicitly mention moving away from unabated coal power and from inefficient fossil fuel subsidies. This wording linked climate mitigation directly with concrete changes in energy systems and public finance. It also recognised the need for targeted support and a just transition for poorer and vulnerable groups while pursuing these goals. Therefore, the option that highlights phase-down of unabated coal and phase-out of inefficient subsidies best captures this landmark feature of the pact. (UNFCCC)

Option A:
Option A is incorrect because COP26 did not impose an immediate worldwide legal ban on all fossil fuel use from 2022; countries retained flexibility based on national circumstances. Such a sweeping, instant ban would have been politically and economically unrealistic, and it does not appear in the actual text of the pact. This option exaggerates the ambition and misunderstands how COP decisions operate.

Option B:
Option B is correct as it reproduces the key new language of the Glasgow Climate Pact on coal and fossil fuel subsidies. It reflects the political compromise of “phase-down” rather than “phase-out” for coal and focuses on inefficient subsidies, which parties agreed must be reformed. This formulation is widely cited as a historic first in the UNFCCC process and directly addresses structural drivers of emissions.

Option C:
Option C is incorrect because the pact does not endorse expanding coal-fired power to 2050; instead, it recognises that coal use needs to decline for mitigation. Supporting additional coal capacity would be inconsistent with pathways compatible with the 1.5°C goal and is not part of the agreement.

Option D:
Option D is wrong since the 1.5°C temperature limit was reaffirmed, not removed. Glasgow decisions emphasised “keeping 1.5°C within reach” and called for narrowing the gap between current pledges and the emission reductions needed to achieve that target, so this option misrepresents the outcome.

Green buildings aim to reduce environmental impacts over the entire life cycle of a structure. They incorporate features such as proper insulation, passive solar design, rainwater harvesting, low-flow fixtures, non-toxic materials and ventilation systems that maintain healthy indoor conditions. These features help save energy and water, reduce waste and improve occupant well-being.

Option A:
Option A is incorrect because heavy use of energy-intensive materials without insulation typically increases a building’s ecological footprint and operating energy demand.

Option B:
Option B is correct as it summarises the central concerns of energy efficiency, water conservation and healthy indoor environments, alongside careful material choices.

Option C:
Option C is incorrect since sealing windows to exclude natural light and fresh air raises dependence on artificial lighting and mechanical ventilation, increasing energy use and potentially harming indoor air quality.

Option D:
Option D is incorrect because green building practice often seeks to integrate landscaping, trees and pervious surfaces, not eliminate them.

The VOC Port pilot produces green hydrogen to run streetlights and an EV charging station within the port colony, alongside plans for a green methanol bunkering facility. These initiatives show how ports can integrate clean fuels into their own operations and prepare for low-carbon shipping. Demonstration projects help test technology, build capacity and create confidence for larger-scale deployment in the maritime sector. (The Times of India)

Option A:
This option is incorrect because the pilot is explicitly located in a port setting and focuses on electricity and future marine fuels, not agriculture.

Option B:
This option correctly explains how small-scale pilots can illustrate pathways for decarbonising ports and shipping, which are important for trade and coastal environments.

Option C:
Coastal infrastructure can benefit greatly from renewables and green fuels; saying otherwise contradicts global port-decarbonisation trends.

Option D:
Pilots are often crucial first steps in technology diffusion and policy learning; dismissing them as irrelevant ignores their strategic value.