Question

Why do we need oxygen for our body?

Answer 1

(We breathe because oxygen is needed to burn the fuel [sugars and fatty acids] in our cells to produce energy.) (Oxygen is brought into the lungs via breathing, where it is transported by red blood cells to the entire body to be used to produce energy. ... As part of the combustion process, carbon dioxide is released.)

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Answer 2

Oxygen is required for respiration. So without Oxygen, body cells and the heart muscle will die due to lack of respiration.

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