Which one of the following gases is placed second in respect of abundance in the Earth 39 s atmosphe...........

General Science (NDA) Chemistry

Which one of the following gases is placed second in respect of abundance in the Earth's atmosphere?

Oxygen

Hydrogen

Nitrogen

Carbon dioxide

The most abundant gas in the Earth's atmosphere is nitrogen. The second most abundant gas is oxygen.

In dry air, the third most abundant gas is argon, a monatomic noble gas. The abundance of carbon dioxide is variable.

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