What is the correct increasing order of the contribution to global warming by the following gases?

1.Methane (CH4)

2.Carbon dioxide (CO2)

3.Nitrous oxide (N2O)

A1, 2, 3

B3, 1, 2 ✓ Correct

C2, 1, 3

D2, 3, 1

Correct answer: (B) 3, 1, 2

Explanation

The increasing order of contribution to global warming runs nitrous oxide, then methane, then carbon dioxide.

Nitrous oxide, Statement 3, contributes the least of the three overall.

Methane, Statement 1, contributes more than nitrous oxide but less than carbon dioxide.

Carbon dioxide, Statement 2, contributes the most owing to its huge emitted volume.

Carbon dioxide dominates despite a lower per-molecule warming effect than methane.

Sheer abundance makes carbon dioxide the leading driver of warming.

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