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32 questions from UPSC CSE Prelims GS Paper 1 on Climate Change & Greenhouse Gases (Environment & Ecology). Spanning from 2006 to 2025. Practice with show/hide answers and detailed explanations.
32
Questions
17
Years
8
Easy
24
Moderate
Q: Consider the following statements: I. Without the atmosphere, temperature would be well below freezing point everywhere on the Earth's surface. II. Heat absorbed and trapped by the atmosphere maintains our planet's average temperature. III. Atmosphere's gases, like carbon dioxide, are particularly good at absorbing and trapping radiation. Which of the statements given above are correct?
Q: Consider the following statements: Statement I: Studies indicate that carbon dioxide emissions from cement industry account for more than 5% of global carbon emissions. Statement II: Silica-bearing clay is mixed with limestone while manufacturing cement. Statement III: Limestone is converted into lime during clinker production for cement manufacturing. Which one of the following is correct in respect of the above statements?
Q: Consider the following statements: I. Carbon dioxide (CO₂) emissions in India are less than 0·5 t CO₂ / capita. II. In terms of CO₂ emissions from fuel combustion, India ranks second in Asia-Pacific region. III. Electricity and heat producers are the largest sources of CO₂ emissions in India. Which of the statements given above is/are correct?
Q: One of the following regions has the world’s largest tropical peatland, which holds about three years worth of global carbon emissions from fossil fuels; and the possible destruction of which can exert detrimental effect on the global climate. Which one of the following denotes that region?
Q: निम्नलिखित कथनों पर विचार कीजिए : कथन-I : भारत, अपने स्वच्छ ऊर्जा लक्ष्यों के बावजूद, विद्युत उत्पन्न करने के लिए अभी भी मुख्य रूप से कोयले पर निर्भर है। कथन-II : देश में विद्युत उत्पादन के लिए कम-से-कम 60% कोयले पर आधारित ताप बिजलीघरों की आवश्यकता है। उपरोक्त कथनों के बारे में निम्नलिखित में से कौन-सा एक सही है?
Q: Consider the following: 1. Aerosols 2. Foam agents 3. Fire retardants 4. Lubricants In the making of how many of the above are hydrofluorocarbons used?
Q: Consider the following statements: Statement-I: Carbon markets are likely to be one of the most widespread tools in the fight against climate change. Statement-II: Carbon markets transfer resources from the private sector to the State. Which one of the following is correct in respect of the above statements?
Q: Consider the following activities: 1. Spreading finely ground basalt rock on farmlands extensively 2. Increasing the alkalinity of oceans by adding lime 3. Capturing carbon dioxide released by various industries and pumping it into abandoned subterranean mines in the form of carbonated waters How many of the above activities are often considered and discussed for carbon capture and sequestration?
Q: निम्नलिखित फ़सलों में कौन-सी एक, मीथेन और नाइट्रस ऑक्साइड गैसों का सर्वाधिक महत्वपूर्ण मानवोत्पादी स्रोत है?
Q: What is blue carbon?
Q: The ‘Common Carbon Metric’, supported by UNEP, has been developed for
Q: Which one of the following statements best describes the term ‘Social Cost of Carbon’? It is a measure, in monetary value, of the
Q: In the context of which of the following do some scientists suggest the use of cirrus cloud thinning technique and the injection of sulphate aerosol into stratosphere?
Q: Which of the following statements are correct about the deposits of ‘methane hydrate’? 1. Global warming might trigger the release of methane gas from these deposits. 2. Large deposits of ‘methane hydrate’ are found in Arctic Tundra and under the seafloor. 3. Methane in atmosphere oxidizes to carbon dioxide after a decade or two. Select the correct answer using the code given below:
Q: निम्नलिखित कथनों में से कौन-सा “कार्बन निषेचन” (कार्बन फर्टिलाइज़ेशन) को सर्वोत्कृष्ट वर्णित करता है? (a) वायुमण्डल में कार्बन डाइऑक्साइड की बढ़ी हुई सान्द्रता के कारण बढ़ी हुई पौध वृद्धि (b) वायुमण्डल में कार्बन डाइऑक्साइड की बढ़ी हुई सान्द्रता के कारण पृथ्वी का बढ़ा हुआ तापमान (c) वायुमण्डल में कार्बन डाइऑक्साइड की बढ़ी हुई सान्द्रता के परिणामस्वरूप महासागरों की बढ़ी हुई अम्लता (d) वायुमण्डल में कार्बन डाइऑक्साइड की बढ़ी हुई सान्द्रता के द्वारा हुआ जलवायु परिवर्तन के अनुकूल पृथ्वी पर सभी जीवधारियों का अनुकूलन
Q: In the context of mitigating the impending global warming due to anthropogenic emissions of carbon dioxide, which of the following can be the potential sites for carbon sequestration? 1. Abandoned and uneconomic coal seams 2. Depleted oil and gas reservoirs 3. Subterranean deep saline formations Select the correct answer using the code given below:
Q: Consider the following statements: 1. Climate and Clean Air Coalition (CCAC) to Reduce Short Lived Climate Pollutants is a unique initiative of G20 group of countries. 2. The CCAC focuses on methane, black carbon and hydrofluorocarbons. Which of the statements given above is/are correct?
Q: Consider the following pairs: Terms sometimes seen in the news — Their origin 1. Annex-I Countries : Cartagena Protocol 2. Certified Emissions Reductions : Nagoya Protocol 3. Clean Development Mechanism : Kyoto Protocol Which of the pairs given above is/are correctly matched?
Q: Which of the following best describes/describe the aim of 'Green India Mission' of the Government of India? 1. Incorporating environmental benefits and costs into the Union and State Budgets thereby implementing the 'green accounting' 2. Launching the second green revolution to enhance agricultural output so as to ensure food security to one and all in the future 3. Restoring and enhancing forest cover and responding to climate change by a combination of adaptation and mitigation measures Select the correct answer using the code given below.
Q: What is 'Greenhouse Gas Protocol'?
Q: The scientific view is that the increase in global temperature should not exceed 2 °C above the pre-industrial level. If the global temperature increases beyond 3 °C above the pre-industrial level, what can be its possible impact/impacts on the world? 1. Terrestrial biosphere tends toward a net carbon source. 2. Widespread coral mortality will occur. 3. All the global wetlands will permanently disappear. 4. Cultivation of cereals will not be possible anywhere in the world. Select the correct answer using the code given below.
Q: If National Water Mission is properly and completely implemented, how will it impact the country? 1. Part of the water needs of urban areas will be met through recycling of waste-water. 2. The water requirements of coastal cities with inadequate alternative sources of water will be met by adopting appropriate technologies that allow for the use of ocean water. 3. All the rivers of Himalayan origin will be linked to the rivers of peninsular India. 4. The expenses incurred by farmers for digging bore-wells and for installing motors and pump-sets to draw ground-water will be completely reimbursed by the Government. Select the correct answer using the codes given below:
Q: The acidification of oceans is increasing. Why is this phenomenon a cause of concern? 1. The growth and survival of calcareous phytoplankton will be adversely affected. 2. The growth and survival of coral reefs will be adversely affected. 3. The survival of some animals that have phytoplanktonic larvae will be adversely affected. 4. The cloud seeding and formation of clouds will be adversely affected. Which of the statements given above is/are correct?
Q: Regarding “carbon credits”, which one of the following statements is not correct?
Q: Due to their extensive rice cultivation, some regions may be contributing to global warming. To what possible reason/reasons is this attributable? 1. The anaerobic conditions associated with rice cultivation cause the emission of methane. 2. When nitrogen based fertilizers are used, nitrous oxide is emitted from the cultivated soil. Which of the statements given above is/are correct?
Q: What are the possible limitations of India in mitigating the global warming at present and in the immediate future ? 1. Appropriate alternate technologies are not sufficiently available. 2. India cannot invest huge funds in research and development. 3. Many developed countries have already set up their polluting industries in India. Which of the statements given above is/are correct ?
Q: Consider the following which can be found in the ambient atmosphere : 1. Soot 2. Sulphur hexafluoride 3. Water vapour Which of the above contribute to the warming up of the atmosphere ?
Q: In the context of CO₂ emission and Global Warming, what is the name of a market-driven device under the UNFCCC that allows developing countries to get funds/incentives from the developed countries to adopt better technologies that reduce greenhouse gas emissions ?
Q: The concept of carbon credit originated from which one of the following ?
Q: Consider the following: 1. Rice fields 2. Coal mining 3. Domestic animals 4. Wetlands Which of the above are sources of methane, a major greenhouse gas?
Q: Consider the following statements: 1. Clean Development Mechanism (CDM) in respect of carbon credits is one of the Kyoto Protocol Mechanisms. 2. Under the CDM, the projects handled pertain only to the Annex-I countries. Which of the statements given above is/are correct?
Q: Which one of the following countries is the first country in the world to propose a carbon tax for its people to address global warming?
UPSC tends to give multi-statement questions comparing objectives, legally binding nature, target years, and ratification status of UNFCCC, Kyoto Protocol, Paris Agreement, Kigali Amendment and related bodies like the IPCC or UNEP. Candidates must know which agreement controls which gas set, flexibility mechanisms (CDM, IET), and India’s commitments (NDCs).
Focus on global warming potential ranking, atmospheric lifetime, primary anthropogenic sources, and sector-wise emission shares of CO₂, CH₄, N₂O, SF₆, HFCs and PFCs. UPSC also asks about natural sinks (oceans, forests, wetlands), carbon credit instruments, India’s emission inventory, and schemes like PAT, Perform Achieve & Trade.
