What are the two most abundant gases in the atmosphere

The correct answer will be- Oxygen (21%) and Nitrogen (78%)

Explanation:

The atmosphere of Earth is composed of a mixture of the gases in different concentrations.

The major constituent gases of the atmosphere are the nitrogen which constitutes about 78% of the total gases present and the oxygen which constitutes the 21% of the total gases.

These gases exist in their divalent states in the atmosphere where the nitrogen is used by the organisms when it is fixed by the prokaryotic nitrogen-fixing bacteria whereas the oxygen is directly used by the organism.

Thus, Oxygen (21%) and Nitrogen (78%) is the correct answer.

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