Paper 1 · People, Development and Environment
UGC NET December 2021 June 2022 (12.07.2022) Shift-I
Identify the major sources of methane emissions.
- 1. Landfills
- 2. Mountain rivers
- 3. Paddy fields
- 4. Wetlands
A1, 2 and 3 only
B2, 3 and 4 only
C1, 2 and 4 only
D1, 3 and 4 only ✓ Correct
Correct answer: (D) 1, 3 and 4 only — The answer is 1, 3 and 4.
Explanation
★The answer is 1, 3 and 4.
★Landfills release methane as waste decomposes, which is item 1.
★Paddy fields are a major source of methane, which is item 3.
★Wetlands emit methane from waterlogged soils, which is item 4.
★Mountain rivers are not a source of methane, so item 2 is excluded.
★So the major sources are landfills, paddy fields and wetlands.
★So the answer is 1, 3 and 4.
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