Paper 1 · People, Development and Environment
UGC NET December 2022 (16.03.2023) Shift-I (Psychology)
What is the correct increasing order of the Global Warming Potential of the following air pollutants? A. CFC-11 (CCl3F), B. Nitrous oxide (N2O), C. Carbon dioxide (CO2), D. Methane (CH4).
- CFC-11 (CCl3F)
- Nitrous oxide (N2O)
- Carbon dioxide (CO2)
- Methane (CH4)
A4, 3, 2, 1
B1, 3, 4, 2
C3, 4, 2, 1 ✓ Correct
D2, 4, 3, 1
Correct answer: (C) 3, 4, 2, 1 — The increasing order is 3, 4, 2, 1.
Explanation
★The increasing order is 3, 4, 2, 1.
★Carbon dioxide has the lowest global warming potential and is taken as the base, which is item 3.
★Methane has a higher potential than carbon dioxide, which is item 4.
★Nitrous oxide has a still higher potential than methane, which is item 2.
★CFC-11 has the highest global warming potential of the four, which is item 1.
★So the increasing order is carbon dioxide, methane, nitrous oxide and CFC-11.
★So the answer is 3, 4, 2, 1.
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