Question

All animals and human beings need this for breathing?
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Answer 1

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We all breathe. All people and animals draw air into their lungs and then puff it out again. In the air we breathe are molecules of oxygen. Our bodies use this oxygen in the process of living.

Answer 2

Answer:

We all breathe. All people and animals draw air into their lungs and then puff it out again. In the air we breathe are molecules of oxygen. Our bodies use this oxygen in the process of living.

Explanation:

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