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Layers of Earth

The primitive...

Question

The primitive atmosphere of earth contained water vapours, hydrogen, ammonia, and _______.

A

C O_{2}

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B

O_{2}

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C

N_{2}

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D

Methane

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Solution

The correct option is D Methane
The primitive atmosphere of earth contained water vapours, hydrogen, ammonia, and methane. It was a reducing atmosphere without free oxygen. It was favorable to origin of life and allowed chemical evolution.
So, the correct answer is option D.

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