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Which of the gases have about the same concentration when a person inhales and exhales? O A. nitrogen and argon O B. oxygen and nitrogen C. argon and carbon dioxide OD. carbon dioxide and oxygen
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Which of the gases have about the same concentration when a person inhales and exhales?

O A. nitrogen and argon
O B. oxygen and nitrogen
C. argon and carbon dioxide
OD. carbon dioxide and oxygen

User Niddro
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1 Answer

2 votes

Answer:

Carbon dioxide and OXygen because the air we breathe out contains 16.4% of oxygen and 4.4% of carbon dioxide.

Step-by-step explanation:

User Sobeida
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