Multiple choice

Acid rain is caused by burning of coal and petroleum because the combustion of these fuels adds to the atmosphere the oxides of

  1. sulphur

  2. nitrogen

  3. carbon

  4. Both 1 and 2
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Burning of coal and petroleum releases sulphur dioxide and nitrogen dioxide in the atmosphere which come down as acid rain.

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