Question

what is the ratio of nitrogen to oxygen ??.show full method with division​

Answer 1

Air consists of 78.09% nitrogen and 21% oxygen. The ratio of nitrogen to oxygen in air is - roughly 1:4.

Answer 2

The whole atmosphere we assume as 100%

In which nitrogen is 70% and oxygen is 30%(actually amount is 78.0 and 21.0 other gases of 1.0 approximate)

70%+30%=100%

So,the ratio of gases in atmosphere can be called as 70:30.