Zoology-Origin of Life
NEET Zoology Origin of Life MCQ Question
Type: MCQ-diagram based-Medium-Class 12
Imagine a diagram showing the early Earth with various gases surrounding it. Which of the following gases was NOT present in the early Earth's atmosphere?
A
Oxygen
B
Methane
C
Carbon dioxide
D
Ammonia
Correct Answer
Option A
Detailed Explanation
The early Earth's atmosphere lacked oxygen. It was primarily composed of water vapour, methane, carbon dioxide, and ammonia.
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