Which of the following were part of Earth's early atmospher…

Biology Evolution Skill Builder Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 21, 2026

Which of the following were part of Earth's early atmosphere?

Methane , and ,

Carbon dioxide
, and only , , and

Oxygen only , and

Nitrogen Choose the correct components from the options given below: only only

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The correct answer is:

The early atmosphere of Earth, as formed from volcanic outgassing, consisted primarily of methane and carbon dioxide . Oxygen was not initially present and formed later.

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