Which are the two main gases in our atmosphere?

Nitrogen, Oxygen

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Nitrogen, Argon

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Oxygen, Argon

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Argon, Carbon dioxide

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Solution

The correct option is A Nitrogen, Oxygen
Nitrogen and oxygen are the two main gases in our atmosphere. 78% is nitrogen and 21% is oxygen. The remaining 1% mostly contains argon, carbon dioxide, and several other gases like hydrogen, helium, neon, krypton, xenon, methane, ozone, and water vapour.

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