Zoology-Origin of Life
NEET Zoology Origin of Life MCQ Question
Type: MCQ-diagram based-Hard-Class 12
Imagine a diagram showing the early Earth's atmosphere as described in the NCERT text. Which of the following gases was NOT a major component of this atmosphere?

A
Oxygen
B
Methane
C
Carbon dioxide
D
Ammonia
Correct Answer
Option A
Detailed Explanation
According to the NCERT text, the early Earth's atmosphere was composed of water vapour, methane, carbon dioxide, and ammonia, but not oxygen.
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