Question

air is a mixture of various gases . one of the gases most essential for human survival is. (a) nitrogen (b) oxygen (c) ozone (d) carbon dioxide​

Answer 1

Hi mate

$Question$

Air is a mixture of various gases. One of the gases most essential for human survival is.

(a) nitrogen

(b) oxygen

(c) ozone

(d) carbon dioxide

$Answer$

Option (b) Oxygen is your answer

$Reason$

Oxygen is important to every cell in your body. Without it, your cells can't make energy, and their metabolism is less effective. Without sufficient oxygen, we perform less efficiently.

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