Question

although both food and oxygen are necessary for life man can live without food for a number of days but he dies without oxygen within a few minutes why​

Answer 1

Answer:

Because Oxygen Is necessary for Breathing and our Blood Needs fresh oxygen to supply it to all parts of our body..As we eat, The amount of excess energy produced is stored in the form of "Glycogen".When our body needs energy this extra glycogen is converted in glucose again and therefore we can survive for some days without Food.

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Answer 2

this is the answer

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