Multiple choice

What did primitive atmosphere of Earth contain?

  1. Oxygen, ammonia and methane

  2. Carbon dioxide, ammonia and methane

  3. Carbon dioxide, oxygen and methane

  4. Water, methane and ammonia

  5. Water, oxygen and carbon dioxide

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

The primitive atmosphere of Earth had water, methane and ammonia.