Paper 1 · People, Development and Environment
UGC NET December 2021 June 2022 (09.07.2022) Shift-II
Match List I (Source or Process) with List II (Air Pollutant) and choose the correct answer.
List I
- Transport sector
- Refrigeration and air conditioning
- Landfills
- Incineration of medical waste
List II
- Methane
- Volatile organic carbons (VOCs)
- Dioxins
- HFCs
AI-c, II-b, III-d, IV-a
BI-b, II-d, III-a, IV-c ✓ Correct
CI-b, II-d, III-c, IV-a
DI-c, II-d, III-a, IV-b
Correct answer: (B) I-b, II-d, III-a, IV-c — The correct match is I-b, II-d, III-a, IV-c.
Explanation
★The correct match is I-b, II-d, III-a, IV-c.
★The transport sector releases volatile organic carbons from fuel combustion.
★Refrigeration and air conditioning release HFCs used as refrigerants.
★Landfills release methane as organic waste decomposes without oxygen.
★Incineration of medical waste releases dioxins, highly toxic by-products of burning.
★Each pollutant is tied to the process that mainly emits it.
★Matching source to pollutant tests knowledge of air pollution origins.
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