Question

what is the composition of air​

Answer 1

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The air in our atmosphere is composed of molecules of different gases. The most common gases are nitrogen 78%, oxygen about 21%, and argon almost 1%. Other molecules are present in the atmosphere as well, but in very small quantities.

Answer 2

$\bold{ANSWER}$

The air in our atmosphere is composed of molecules of different gases. The most common gases are nitrogen 78%, oxygen about 21%, and argon almost 1%. Other molecules are present in the atmosphere as well, but in very small quantities.