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The air you breathe into your lungs on a daily basis mostly consists of a. oxygen b. carbon dioxide c. nitrogen d. hydrogen
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The air you breathe into your lungs on a daily basis mostly consists of

a. oxygen
b. carbon dioxide
c. nitrogen
d. hydrogen

User Dana Benson
by
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1 Answer

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The air you breathe into your lungs on a daily basis mostly consist of carbon dioxide.
User Daylily
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