Paper 1 · People, Development and Environment
UGC NET December 2022 (23.02.2023) Shift-II
Which one of the following pollutants is responsible for acid rain formation?
ACH4 (methane)
BC6H6 (benzene)
CSO2 (sulphur dioxide) ✓ Correct
DCO (carbon monoxide)
Correct answer: (C) SO2 (sulphur dioxide) — The pollutant responsible is sulphur dioxide, so the answer is sulphur dioxide.
Explanation
★The pollutant responsible is sulphur dioxide, so the answer is sulphur dioxide.
★Acid rain forms when certain gases react with water in the atmosphere.
★Sulphur dioxide is a key gas that begins this reaction.
★It rises high, reacts with water and forms sulphuric acid.
★This acid then falls as acid rain.
★Methane, benzene and carbon monoxide are not the main cause of acid rain.
★So the answer is sulphur dioxide.
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