CTET PAPER I 2018 · PYQ · Environment / Greenhouse Gases · easy
Which of the following is/are greenhouse gas/gases? (1) Carbon dioxide (2) Methane (3) Water vapour
A.Carbon dioxide
B.Methane
C.Water vapour
D.All of the above✓ Correct
Explanation
All three — carbon dioxide (CO₂), methane (CH₄), and water vapour (H₂O) — are greenhouse gases. They trap infrared radiation in the Earth's atmosphere, contributing to the greenhouse effect. Water vapour is actually the most abundant greenhouse gas.
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