Question

on basis of composition of gases how could we classify the atmosphere

Answer 1

Answer:

74% nitrogen

22%oxygen

4% other gases

as per latest research of 2019(U.S documenys)

Answer 2

Answer:

Earth's atmosphere is composed of about 78% nitrogen, 21% oxygen, and 0.93% argon. The remainder, less than 0.1%, contains many small but important tracegases, including water vapor, carbon dioxide, and ozone.