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If You Measure the Air a Person Inhales You Observe

Question 29

Multiple Choice

If you measure the air a person inhales you observe that the concentrations ______ in the air they exhale.


A) of O2 rises and CO2 falls
B) of O2 falls and CO2 rises
C) of both O2 and CO2 rise
D) of both O2 and CO2 fall

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