Why do we need to breathe out carbon dioxide
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Why do we need to breathe out carbon dioxide
Answered by admin @
Excess carbon dioxide must be removed from the body to stop it reaching toxic levels. As the blood flows through the lungs, excess carbon dioxide passes out of the blood and into the alveoli by diffusion. It is then removed from the lungs when we exhale (breathe out).
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NCERT Class X
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