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Compared to the Air a Person Inhales,the Air That They

Question 57

Multiple Choice

Compared to the air a person inhales,the air that they exhale has


A) higher concentrations of both O2 and CO2 .
B) lower concentrations of both O2 and CO2 .
C) a lower concentration of O2 and a higher concentration of CO2 .
D) a higher concentration of O2 and a lower concentration of CO2 .

Correct Answer:

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