answersLogoWhite

0

Dry air is primarily made up of nitrogen (78.09%) and oxygen (20.95%). The remaining 1% is made up of argon (0.93%), carbon dioxide (0.03%) and other trace gases (0.003%). Water vapor (water in its gaseous state) is also present in air in varying amounts.

Your body doesn't use most of these gases apart from oxygen. As your body uses oxygen for respiration, oxgyen gets exchanged for carbon dioxide, you also breathe out more water vapour.

User Avatar

Wiki User

10y ago

What else can I help you with?