Air mainly contains nitrogen and
A.Oxygen
B.Argon
C.co2
D.water vapour
Question of physics
Class-6

Dear student,

Air is a mixture of gases that contains-
nitrogen- 78%
oxygen- 21%
argon- 0.9 %
carbon dioxide and rare gases- 0.1%
water vapour in air 0.2% - 4%
Hence, the correct option is A Oxygen.

Regards