UGC NET Questions (Paper – 1)

Statements A, B and D are correct and together summarise the relationship between carrying capacity, environmental limits and sustainable development. Carrying capacity describes the maximum sustainable load on an environment, and exceeding it can cause depletion and degradation. Sustainable development tries to align human activities with these ecological limits. Statement C is incorrect because technological innovations can increase or sometimes decrease effective carrying capacity by changing resource use efficiency and environmental impact. Hence, the correct combination is A, B and D only.

Option A:
Option A is incorrect because it lists only A and B, leaving out D. Although A and B accurately define carrying capacity and consequences of overshooting it, D is also correct in linking sustainability goals to staying within ecological limits. Excluding D makes the set incomplete.

Option B:
Option B is incorrect because it combines B, C and D and treats C as correct. C is wrong because technology can alter carrying capacity, for example through improved agricultural productivity or more efficient energy use. Including a false statement makes this combination unacceptable.

Option C:
Option C is incorrect because it asserts that all four statements A, B, C and D are correct. While A, B and D are correct, C contradicts the dynamic understanding of carrying capacity influenced by technological and social changes. The presence of an incorrect statement invalidates the entire set.

Option D:
Option D is correct because it identifies the three statements that align with ecological and sustainability concepts and excludes the one that is clearly false. It recognises both the definitional and policy dimensions of carrying capacity and reflects the essence of the development–environment relationship in the unit.

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.

Statements A, C and D correctly describe key ideas about resource use and sustainable development. Statement A explains the regenerative nature of renewable resources when used within limits, C highlights the tragedy of the commons associated with overuse of shared resources and D emphasises the role of renewable energy and efficiency in sustainability. Statements B and E are incorrect because non-renewable resources are finite and their extraction and use often cause serious environmental damage. The combination that contains A, C and D only is therefore the correct answer.

Option A:
Option A is incorrect because it includes only A and C and leaves out D. While A and C are true, D is also correct in stressing policy directions for sustainable development. Excluding a correct statement makes this combination incomplete.

Option B:
Option B is incorrect because it includes A, C and E. Statement E is wrong as extraction and use of non-renewable resources typically lead to pollution, habitat destruction and greenhouse gas emissions. The inclusion of this false statement invalidates the option.

Option C:
Option C is incorrect because it adds statement B to the otherwise correct set. Statement B falsely claims that non-renewable resources are infinite and can be exploited without concern, which contradicts their finite nature and the need for conservation. Because it contains a wrong statement, this combination cannot be accepted.

Option D:
Option D is correct because it groups A, C and D, all of which are conceptually sound and aligned with the idea of sustainable resource management. It acknowledges the properties of renewable resources, the risks of overusing common property resources and the importance of shifting to clean energy and efficiency. By excluding the incorrect statements B and E, it becomes the only fully correct combination.

Statements A, B and C are in fact correct as they describe how environmental accounting and green GDP attempt to incorporate environmental factors into economic assessment. Traditional GDP does ignore many environmental costs, and green GDP seeks to correct for these. Statement D is incorrect because environmental accounting provides important information for policy and planning. Since option C includes B, C and D and leaves out A while accepting D, it cannot be the correct answer. The correct combination must include A, B and C only.

Option A:
Option A is correct because it lists A, B and C and excludes D. It highlights the conceptual and practical significance of environmental accounting and green GDP in making development assessments more environmentally informed. Thus, it matches the intent of the question.

Option B:
Option B is incorrect because it omits C, which explicitly refers to green GDP adjustments, an important part of the concept. Leaving out such a central statement makes the combination incomplete.

Option C:
Option C is incorrect as it includes D, which wrongly asserts that environmental accounting is irrelevant for decision making. This contradicts the rationale behind developing such accounting systems.

Option D:
Option D is incorrect because it pairs A and C with D and omits B. It again accepts D, the incorrect statement, and fails to acknowledge the limitations of traditional GDP captured in B.

Green GDP is an attempt to modify traditional GDP by subtracting the monetary value of environmental damage and resource depletion. It reflects the idea that economic output achieved by degrading natural capital is not fully beneficial. By integrating environmental costs,it provides a more realistic picture of sustainable income. Therefore the description in the question corresponds to green GDP.

Option A:
Green GDP incorporates estimates of pollution damage,deforestation and other forms of ecological loss into national accounts. This helps policymakers see whether growth is achieved at the expense of future productive capacity. Because the stem emphasises adjusting GDP for environmental degradation,this term is the correct answer.

Option B:
Net national product adjusts gross measures for depreciation of physical capital but not necessarily for environmental depletion. It focuses on man made capital rather than ecosystems. Hence it does not fully capture the idea described in the question.

Option C:
Per capita income divides national income by population to indicate average income. It says nothing about environmental impacts or sustainability. Therefore it is not appropriate for the definition given.

Option D:
Balance of payments records a country’s financial transactions with the rest of the world. It deals with trade,investment and transfers,not with ecological accounting. Thus it does not match the concept described in the stem.

Population explosion describes a very rapid and often uncontrolled rise in population. Such growth can intensify pressure on land,water and other resources. It frequently contributes to deforestation,pollution and environmental degradation. Therefore the situation presented in the question is best captured by the term population explosion.

Option A:
Population explosion directly implies that population size is increasing faster than the capacity of the environment and infrastructure to support it. This mismatch leads to overuse of resources and ecological stress. Hence it appropriately summarises the phenomena listed in the stem.

Option B:
Demographic transition refers to a long term shift from high to low birth and death rates. It is a model of population change over time,not specifically a description of rapid overuse of resources. Thus it is not the most accurate answer here.

Option C:
The Green revolution relates to the introduction of high yielding varieties,irrigation and fertilisers to increase agricultural production. Although it had environmental consequences,it is not a term for rapid population growth. Therefore it does not fit the question’s description.

Option D:
Urban renewal is a process of redeveloping deteriorated urban areas. It may change population distribution but is not a synonym for rapid population increase. Hence it is not appropriate for the stem.

Statement D is wrong because carrying capacity is highly relevant to debates on population and sustainable development, highlighting ecological limits. Statements A, B and C are correct: they define carrying capacity, show its dependence on consumption and technology and explain consequences of overshoot. Thus, the combination that identifies D alone as wrong is correct.

Option A:
Option A is incorrect because it marks A as a wrong statement, but A is a correct definition of carrying capacity (maximum population without long-term degradation). Misclassifying a true definition makes this option invalid.

Option B:
Option B is incorrect because it groups A with D as wrong, even though A is correct. Including a correct statement among the wrong ones makes the combination unacceptable.

Option C:
Option C is incorrect since it marks both C and D as wrong. C is actually correct in noting that exceeding carrying capacity leads to depletion and stress, so this option incorrectly labels a true statement as wrong.

Option D:
Option D is correct because it singles out D as the only incorrect statement and implicitly acknowledges A, B and C as true. It aligns with the conceptual link between carrying capacity, population and sustainability.