Question

why we need to breath​

Answer 1

WHY DO WE NEED TO BREATHE? Breathing is essential to keep us alive, because every living cell in the body needs a continual supply of oxygen. Inside each cell, oxygen combines with food molecules in a chemical reaction called oxidation, which releases energy. This energy powers every process in the human body

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Answer 2

Breathing is essential to keep us alive, because every living cell in the body needs a continual supply of oxygen. Inside each cell, oxygen combines with food molecules in a chemical reaction called oxidation, which releases energy. This energy powers every process in the human body.