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Theory of Panspermia and Chemical Evolution

Early atmosph...

Question

Early atmosphere contained methane and other hydrocarbons. They have been now replaced by

A

Nitrogen

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B

Oxygen

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C

Carbon dioxide

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D

Hydrogen

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Solution

The correct option is A Nitrogen
Now the atmosphere consists of Nitrogen-78%, oxygen-21%, carbon dioxide-0.039%. Nitrogen is major component in the air.
So, the correct option is 'Nitrogen'

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