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How do we respire? How do …

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How do we respire? How do we enhale and exhale? Why do we breathe?

Posted by Versha Sharma 4 years, 10 months ago

CBSE > Class 07 > Science

2 answers

Versha Sharma 4 years, 10 months ago

Thanks?

Aishwarya Kumar 4 years, 10 months ago

When you inhale (breathe in), air enters your lungs and oxygen from the air moves from your lungs to your blood. At the same time, carbon dioxide, a waste gas, moves from your blood to the lungs and is exhaled (breathe out). This process is called gas exchange and is essential to

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