why do we breathe ?
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Answer:
We breath because of the our nose inhale and exhale
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- All cells in our bodies require oxygen to function properly and generate energy.
- Oxygen is required for humans to survive.
- Air has 21% oxygen, which we breathe through our lungs to allow it to enter our circulation and help us in the correct functioning of our tissues and organs.
- Humans get their oxygen into their lungs through the nose and mouth.
- We also breathe to release the gas of carbon dioxide, which is a form of waste that our bodies generate.
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