Multiple choice

Which of the following options does not cause acid rain?

  1. Carbon dioxide

  2. Methane

  3. Chlorofluorocarbon (CFC)

  4. Nitrogen oxide

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Methane is an odorless, colourless, flammable gas, with chemical formula CH4. It is  the major constituent of natural gas, that is used as a fuel and is an important source of energy. It does not cause acid rain.