MCQ
Climate Change MCQ - Practice Questions with Answers
Solve 89 Climate Change questions for RAS/RPSC preparation.
Practice questions
Q1Consider the following statements about institutional arrangements under the UNFCCC: 1. The Convention establishes a secretariat. 2. The subsidiary body for implementation assists the Conference of the Parties in assessment and review of effective implementation. 3. The financial mechanism of the Convention is entrusted exclusively to the IPCC. 4. The financial mechanism is required to have equitable and balanced representation of all Parties within a transparent system of governance. Which of the statements given above are correct?
Statements 1 and 2 are correct: the Convention creates a secretariat and an implementation body for assessment and review. Statement 3 is incorrect because the financial mechanism's operation is entrusted to one or more existing international entities, not exclusively to the IPCC. Statement 4 is correct because equitable and balanced representation is expressly required.
Q2Consider the following statements regarding adaptation and mitigation in climate change: 1. Adaptation in human systems means adjustment to actual or expected climate and its effects. 2. Adaptation aims to moderate harm or exploit beneficial opportunities. 3. Mitigation of climate change means a human intervention to reduce emissions or enhance greenhouse-gas sinks. 4. Mitigation includes enhancement of greenhouse-gas sinks and is distinct from post-impact relocation. Which of the statements given above are correct?
All four statements are correct. IPCC defines adaptation in human systems as adjustment to actual or expected climate and its effects, with the aim of moderating harm or using beneficial opportunities. It defines mitigation as reducing emissions or enhancing greenhouse-gas sinks; therefore mitigation is distinct from post-impact relocation.
Q3India's updated NDC submitted in April 2026 commits to a clean-power share of how much by 2035?
India's 2031-2035 NDC, approved by the Union Cabinet in March 2026 for communication to the UNFCCC, commits to achieving 60 per cent cumulative electric power installed capacity from non-fossil fuel-based energy resources by 2035. It also commits to reducing the emissions intensity of GDP by 47 per cent from the 2005 level by 2035.
Q4Consider the following statements: 1. Climate change may be due to natural internal processes or external forcings. 2. Volcanic eruptions and persistent human-caused atmospheric changes are both examples mentioned in the IPCC glossary. 3. Climate change excludes changes arising from land use. Which of the statements given above are correct?
Statements 1 and 2 are correct. Statement 3 is incorrect because the IPCC glossary includes persistent anthropogenic changes in land use among causes of climate change.
Q5Consider the following statements: 1. Atmospheric carbon dioxide concentrations in 2019 were higher than at any time in at least 2 million years. 2. Methane and nitrous oxide concentrations in 2019 were higher than at any time in at least 800,000 years. 3. IPCC says observed increases in well-mixed greenhouse gas concentrations since around 1750 are caused mainly by solar cycles. Which of the statements given above are correct?
Statements 1 and 2 are correct. Statement 3 is incorrect because IPCC attributes observed increases in well-mixed greenhouse gas concentrations since around 1750 unequivocally to human activities.
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6Consider the following statements about effects of ocean acidification: 1. Carbonate ions are important building blocks for sea shells and coral skeletons. 2. Decrease in carbonate ions can make building and maintaining calcium carbonate structures difficult for calcifying organisms. 3. NOAA states that ocean acidification affects only coastal estuaries and not the wider oceans. Which of the statements given above are correct?
7Consider the following statements regarding water vapour and aerosols in climate change: 1. Water vapour is a greenhouse gas and plays a key role in climate feedbacks. 2. As greenhouse-gas concentrations and global temperature rise, the total amount of water vapour in the atmosphere also increases, further amplifying warming. 3. Aerosols always warm the climate because they only absorb sunlight. 4. Some aerosols can have a cooling effect by reflecting sunlight. Which of the statements given above are correct?
8Consider the following statements: 1. The Kyoto Protocol binds all countries equally, irrespective of their development status. 2. The Kyoto Protocol set binding emission reduction targets for 37 industrialized countries and economies in transition and the European Union. 3. The Kyoto Protocol has no market-based mechanisms. Which of the statements given above are correct?
9Consider the following statements about limiting future climate change in IPCC AR6: 1. Limiting human-induced warming to a specific level requires limiting cumulative carbon dioxide emissions. 2. Reaching net zero greenhouse gas emissions primarily requires deep reductions in sulphur hexafluoride and perfluorocarbons, not in carbon dioxide or methane. 3. Strong, rapid and sustained reductions in methane emissions would improve air quality. 4. Under scenarios with increasing carbon dioxide emissions, ocean and land carbon sinks are projected to become more effective at slowing atmospheric carbon dioxide accumulation. Which of the statements given above are correct?
10Consider the following statements about Article 2 of the Paris Agreement: 1. It aims to hold the increase in global average temperature to well below 2°C above pre-industrial levels. 2. It pursues efforts to limit the temperature increase to 1.5°C above pre-industrial levels. 3. It includes making finance flows consistent with a pathway towards low greenhouse gas emissions and climate-resilient development. 4. It requires climate action even if food production is threatened. Which of the statements given above are correct?
11Consider the following statements: 1. Global warming can be limited without net zero carbon dioxide emissions. 2. Net zero greenhouse gas emissions, if sustained, are projected to result in a gradual decline in global surface temperatures after an earlier peak. 3. Carbon dioxide removal has no role in achieving net-negative carbon dioxide emissions. Which of the statements given above are correct?
12Consider the following statements about selected IPCC glossary terms and assessment conventions: 1. Global warming refers to the increase in global surface temperature relative to a baseline reference period, averaged over a period sufficient to remove interannual variations. 2. The IPCC glossary states that 1850-1900 is a common baseline choice for global warming. 3. Adaptation in human systems is adjustment to actual or expected climate and its effects to moderate harm or exploit beneficial opportunities. 4. Global mean sea level change is defined only as thermal expansion of seawater and excludes cryosphere or land-water-storage changes. Which of the statements given above are correct?
13Consider the following statements about India's updated first nationally determined contribution: 1. India commits to reduce the emissions intensity of its GDP by 45 percent by 2030 from the 2005 level. 2. India aims to achieve about 50 percent cumulative electric power installed capacity from non-fossil fuel-based energy resources by 2030. 3. India aims to create an additional carbon sink of 2.5 to 3 million tonnes of carbon dioxide equivalent through additional forest and tree cover by 2030. 4. The update reaffirms India's long-term goal of reaching net zero by 2070. Which of the statements given above are correct?
14Consider the following statements about ocean acidification: 1. Ocean acidification refers to a reduction in ocean pH over an extended period, caused primarily by uptake of carbon dioxide from the atmosphere. 2. When carbon dioxide is absorbed by seawater, chemical reactions increase hydrogen ion concentration. 3. Ocean acidification makes carbonate ions more abundant, which makes shell formation easier for calcifying organisms. Which of the statements given above are correct?
15Consider the following statements regarding carbon dioxide and methane: 1. Carbon dioxide is an important heat-trapping gas also known as a greenhouse gas. 2. Methane is the second-largest contributor to climate warming after carbon dioxide. 3. A methane molecule traps more heat than a carbon dioxide molecule, but methane has a shorter atmospheric lifetime than carbon dioxide. 4. Carbon dioxide has a global warming potential of zero because it is used only as a reference gas. Which of the statements given above are correct?