Question

Write the ratio of main gases in the air.

Answer 1

78°/• nitrogen
21°/• oxygen
0.1 others gases

Answer 2

The ratio of main gases present in the atmosphere are by volume it contains

78.09% of nitrogen,

20.95% oxygen,

0.93% of argon,

0.04% carbon dioxide,

and minor amounts of other gases.

Air also contains a mutable amount of water vapor, on regular around 1% at sea level, and 0.4% over the whole atmosphere.