Question

When we inhale, we breathe in air into the lungs. What do we breathe out when we exhale? 


a) only oxygen gas

b) only carbon dioxide gas

c) air that has more oxygen than inhaled air

d) air that has less oxygen than inhaled air​

Answer 1

Explanation:

only carbon dioxide gas

Answer 2

Answer:

Ans=C

Explanation:

We Can also choose D but C is more proper and correct option.