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Which was absent is the atomospher at t...

Which was absent is the atomospher at the time of origin of life ?

A

`NH_(3)`

B

`H_(2)`

C

`O_(2)`

D

`CH_(4)`

Text Solution

Verified by Experts

The correct Answer is:
C
The atmosphere of earth at the time of origin of life was without free oxygen atoms. The primitive atmosphere chiefly consisted of methane, ammonia, water vapour, hydrogen gas, nitrogen gas, and some carbon monoxide
Hydrogen atoms were most numerous and most reactive in primitive atmosphere. They combmed with all available oxygen atoms and formed water.
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