Which one of the following is a cause of acid rains?

Which one of the following is a cause of acid rains?

Ozone
Ammonia
Sulphur dioxide
Carbon monoxide
This question was previously asked in
UPSC NDA-2 – 2017
The correct answer is C.
Sulphur dioxide (SO₂) and nitrogen oxides (NOx) are the primary atmospheric pollutants that cause acid rain. They react with water, oxygen, and other chemicals to form sulfuric and nitric acids.
These pollutants are mainly emitted from the burning of fossil fuels by power plants, vehicles, and industrial facilities. Ozone, Ammonia, and Carbon monoxide are also atmospheric pollutants, but SO₂ and NOx are the principal precursors of acid rain.
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