Why is oxygen gas required for breathing, what is the science behind it?

  Life cannot be imagined without oxygen. But have you ever wondered why we do not breathe any gas other than oxygen? Actually, an American biologist has given the answer to this, which is very interesting. Today we will tell you about it.  Why is breathing important Breathing is as important for any human being as staying alive. Requires water and food. Actually, breathing also supplies necessary energy to our body, due to which all the organs work. It works like fuel for our body. Let us tell you that…

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