Question

The main contributors of acid rain are

• A. Sulphur oxides and carbon oxides
• B. Nitrogen oxides and sulphur oxides
• C. Carbon dioxide and carbon monoxide
• D. Nitrogen oxides and carbon oxides

Answer 1

The correct option is B Nitrogen oxides and sulphur oxides

Acid rain results when sulphur dioxide (SO₂) and nitrogen oxides (NO_X) are emitted into the atmosphere and transported by wind and air currents. The SO₂ and NO_X react with water, oxygen and other chemicals to form sulfuric and nitric acids. These then mix with water and other materials before falling to the ground.