Ask Question
29 June, 21:43

Before there was any life on earth, which gas was absent from earth's ancient atmosphere?

A. nitrogen

B. ammonia

C. oxygen

D. methane

+4
Answers (1)
  1. 29 June, 22:05
    0
    The answer is C. Oxygen.

    Oxygen is the most important gas that living things need to be able to survive especially human. Thus absence of oxygen is absence of life as well.

    Plants and animals also needs oxygen to be able to live.
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “Before there was any life on earth, which gas was absent from earth's ancient atmosphere? A. nitrogen B. ammonia C. oxygen D. methane ...” in 📗 Biology if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers