Question

1. When we inhale, we breathe in air into the lungs. What do we breathe out when we exhale? A) Only oxygen gas. B) Only hydrogen gas. C) Air that has more oxygen than inhaled air. D) Air that has more carbon dioxide than inhaled air.

Answer 1

Answer:

c is correct answer oeans

Answer 2

Answer:

c is correct answer oeans

Explanation:

please mark me brainlist