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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 Relevart
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The air that we breathe into our lungs on a daily basis, mostly consists of oxygen. The answer is option A. Oxygen is a vital component of the air because it is important in the bodily processes of most organisms on earth. It is also considered as the most abounding element in the Earth's crust.
User Snakecharmerb
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