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Greenhouse Gases

3 PYQ across 2 exams · 2016–2025 — the complete chronological timeline of how UPSC has tested this idea, oldest to newest.

CSE 2016 → EPFO 2025
20161 PYQ
CSEQ55
What is 'Greenhouse Gas Protocol'?…
20221 PYQ
CSEQ21
Among the following crops, which one is the most important anthropogenic source of both methane and nitrous oxide?…
20251 PYQ
EPFOQ64
Which one among the following is the primary environmental concern associated with permafrost thawing in the Arctic ?…
Related concepts — explore their timelines too
Methane
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