Paper 1 · People, Development and Environment
UGC NET June 2023 (19.06.2023) Shift-II
Which one of the following gases has the maximum Global Warming Potential (GWP)?
AMethane (CH4)
BNitrous oxide (N2O) ✓ Correct
CCarbon dioxide (CO2)
DCarbon monoxide (CO)
Correct answer: (B) Nitrous oxide (N2O) — Nitrous oxide has the maximum global warming potential among these, so the answer is nitrous oxide.
Explanation
★Nitrous oxide has the maximum global warming potential among these, so the answer is nitrous oxide.
★Global warming potential compares how much heat a gas traps relative to carbon dioxide.
★Carbon dioxide is the reference gas with a potential of one.
★Methane traps far more heat than carbon dioxide over a given period.
★Nitrous oxide has an even higher global warming potential than methane.
★So among these greenhouse gases nitrous oxide has the greatest potential.
★Therefore the answer is nitrous oxide.
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