Correct option is C
Acid rain is primarily caused by the presence of sulfur dioxide (SO₂) and nitrogen dioxide (NO₂) in the atmosphere. These gases are released mainly from the combustion of fossil fuels in power plants, industrial facilities, and vehicles.
When SO₂ and NO₂ are emitted into the atmosphere, they react with water vapor, oxygen, and other chemicals to form sulfuric acid (H₂SO₄) and nitric acid (HNO₃). These acids mix with rainwater, snow, fog, or even dust particles and fall to the ground as acid rain. Acid rain has harmful effects on plants, aquatic animals, and infrastructure, causing soil acidification, water pollution, and the deterioration of buildings.
