Multiple choice

Burning of fossil fuel is the main source of pollutiondue to

  1. Nitrogen oxide

  2. Nitric acid

  3. Nitrous oxide

  4. Sulphur dioxide
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Burning fossil fuels releases sulfur dioxide (SO2), a major air pollutant that contributes to acid rain and respiratory problems. While nitrogen oxides are also produced, SO2 has historically been the primary pollutant associated with fossil fuel combustion, especially from coal power plants.

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