Answer: Nitrous oxide and sulphur dioxide
Notes: Acid rain is primarily caused by the presence of sulfur dioxide (SO₂) and nitrous oxides (NOₓ) in the atmosphere. When these gases are released from burning fossil fuels, they react with water vapor, oxygen, and other chemicals to form sulfuric and nitric acids. This process leads to the acidification of rainwater, which can harm ecosystems, damage buildings, and affect human health. Notably, sulfur dioxide is a important contributor to acid rain, with the U.S. Environmental Protection Agency (EPA) identifying it as a major pollutant.
