Question

what is the composition of air

Answer 1

it cant be said because there is almost everything mixed in it something may be there that we dont know but roughly speaking it is made up of 78%nitrogen,21%oxygen ,0.004%carbon dioxide and lest others:D:);):-)
hope u find it helpful if yes then mark it as brianliest.

Answer 2

Nitrogen 71%

Oxygen 21%

Argon .93%

Co2 0.03%

And rest is others