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21 votes
Just want to know...

Just want to know...-example-1
User Saylor
by
3.8k points

2 Answers

4 votes

Answer:

D

Step-by-step explanation:

when you inhale your taking the energy out of the oxygen and this is called cell respiration turning o2 into co2 thats why when we exhale your left with more carbon dioxide (co2) and less oxygen (o2)

User Lipsumar
by
2.9k points
1 vote

D) is the correct answer. It contains less oxygen.

User LostPhysx
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3.1k points