Question

The air that we breathe out has __________ oxygen than the air outside​

Answer 1

Answer:

Carbon dioxide

Explanation:

The air we breathe out is Carbon dioxide

Answer 2

Answer:

When we exhale, the composition of the air remains almost the same as the air we inhale, only the percentage of carbon dioxide and oxygen changes. 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.

Explanation:

When we take a breath, we pull air into our lungs that contains mostly nitrogen and oxygen. When we exhale, we breathe out mostly carbon dioxide.