Question

why composition of air remains constant?​

Answer 1

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Because air masses are constantly moving, Standard Dry Air is not accurate everywhere at once. Nitrogen and oxygen make up about 99 percent of Earth's air. People and other animals need oxygen to live. Carbon dioxide, a gas that plants depend on, makes up less than .

Answer 2

Answer:

$\huge\fbox\red{❥Answer:-}$

Because air masses are constantly moving, Standard Dry Air is not accurate everywhere at once. Nitrogen and oxygen make up about 99 percent of Earth's air. People and other animals need oxygen to live. Carbon dioxide, a gas that plants depend on, makes up less than .