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Topic Greenhouse gas emissions
Asked 3 times in CSE over 35 years (1981–2016), peaking in 1981.
Key insights
- Most tested in CSE — 3 of 3 PYQs
- Most asked in 1981
- Recurs across 3 years (1981–2016)
Across exams
CSE · 3How the concept evolved
Long-running — most appearances (2 of 3) predate 2016, and it still returns.
Related concepts
Ideas UPSC tests alongside this one — keep exploring.
Sample questions
You've seen the pattern — here are a few of the actual PYQs.
CSE2016
With reference to the Agreement at the UNFCCC Meeting in Paris in 2015, which of the following statements is/are correct?
- The Agreement was signed by all the member countries of the UN and it will go into effect in 2017
- The Agreement aims to limit the greenhouse gas emissions so that the rise in average global temperature by the end of this century does not exceed 2°C or even 1.5°C above pre-industrial levels
- Developed countries acknowledged their historical responsibility in global warming and committed to donate $ 1000 billion a year from 2020 to help developing countries to cope with climate change
Select the correct answer using the code given below.
- A 1 and 3 only
- B 2 only ✓
- C 2 and 3 only
- D 1, 2 and 3
✓ Correct answer: (B)
Environment & Ecology › International Environmental Agreements
CSE2010
Due to their extensive rice cultivation, some regions may be contributing to global warming. To what possible reason/reasons is this attributable? (2010)
- The anaerobic conditions associated with rice cultivation cause the emission of methane
- When nitrogen-based fertilizers are used, nitrous oxide is emitted from the cultivated soil
Which of the statements given above is/are correct?
- A 1 only
- B 2 only
- C Both 1 and 2
- D Neither 1 nor 2
Answer key not yet available (pending official release)
Environment & Ecology › Climate Change
CSE1981
Among the following crops, which one is the most important anthropogenic source of both methane and nitrous oxide?
- A Cotton
- B Rice ✓
- C Sugarcane
- D Wheat
✓ Correct answer: (B)
Agriculture › Crops & Cropping Systems
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