What is the composition of air?

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Solution

Composition of air
Air is a mixture of many gases.
Pure Air Components
By Volume (% Proportion)
Nitrogen
78.09
Oxygen
20.94
Argon
0.93
Carbon dioxide
0.03
Inert gases, methane, hydrogen, ozone gas
Very small volume in ppm (parts per million)

Diagram showing the composition of air

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Pure Air Components	By Volume (% Proportion)
Nitrogen	78.09
Oxygen	20.94
Argon	0.93
Carbon dioxide	0.03
Inert gases, methane, hydrogen, ozone gas	Very small volume in ppm (parts per million)