Expiration is necessary in order to _____. perspire remove CO2 obtain O2 relax emotions

asked Nov 16, 2020 150k views

5 votes

Expiration is necessary in order to _____.

perspire
remove CO2
obtain O2
relax emotions

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2 votes

Answer:

I believe it is Remove C02

Step-by-step explanation:

Anuj Patel answered Nov 17, 2020

5.3k points

2 votes

Remove CO2 is the answer. When we expire, we exhale CO2 so expiration is necessary in order to REMOVE CO2.

JonesCola answered Nov 21, 2020

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