What do humans exhale while breathing?

Nitrogen

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Oxygen

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Carbon dioxide

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Argon

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Solution

The correct option is C Carbon dioxide
Human beings and other animals while breathing, inhale oxygen and exhale carbon dioxide. And this keeps the composition of air balanced.

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Similar questions

Which gas do we exhale?

C O_{2}

C O_{2}

What happens when we exhale (breath out)?

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