Question

The percentage of oxygen is ___________and carbon dioxide is ___________ in exhaled

air.​

Answer 1

Answer:

The amount of inhaled air contains 21% of oxygen and 0.04% of carbon dioxide, while the air we breathe out contains 16.4% of oxygen and 4.4% of carbon dioxide.

Answer 2

Answer:

oxygen 16.4%

carbon dioxide 4.4%