contestada

Most of the air we breathe is made of what molecule?
A. Carbon dioxide
B. Water vapor
C. Nitrogen
D. Oxygen

Respuesta :

imanch

Answer:

C. Nitrogen

Explanation:

The composition of air is as follows:

nitrogen 78%

Oxygen 21%

carbon dioxide 0.03 %

water vapour 0.2 to 0.4 %
The answer will be C if you are talk about the percent of what the air made out of