Question

What is the most abdunt gas in earth atmosphere???? and why??​

Answer 1

Explanation:

Nitrogen and oxygen are by far the most common; dry air is composed of about 78% nitrogen (N2) and about 21% oxygen (O2).

Answer 2

The most abundant gas in the atmosphere is Nitrogen($N_{2}$). It is the most abundant gas in the atmosphere as it constitutes 78% of the total amount of gas present.

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