Multiple choice

Which of the following is not a major greenhouse gas in the atmosphere?

  1. Carbon dioxide

  2. Ozone

  3. Water vapour

  4. Methane

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

Ozone is not a major greenhouse gas in the atmosphere. The primary greenhouse gases in Earth's atmosphere are water vapour, carbon dioxide, methane and nitrous oxide. In the Solar System, the atmospheres of Venus, Mars and Titan also contain gases that cause greenhouse effect.