Question

Acid rain is caused by excess

• A. Release of CO₂ due to increasing combustion and respiration
• B. Release of SO₂ and NO from burning fossil fuels
• C. Production of gaseous hydrocarbons
• D. Production of coal gas

Answer 1

The correct option is B

Release of SO₂ and NO from burning fossil fuels

Acid rain is caused by a chemical reaction that begins when compounds like sulphur dioxide and nitrogen oxides are released into the air. These substances can rise very high into the atmosphere, where they mix and react with water, oxygen and other chemicals to form more acidic pollutants to precipitate down as acid rain.