Why does the body need oxygen?
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Our body needs oxygen to obtain energy to fuel all our living processes. Carbon dioxide is a waste product of that process. The respiratory system, with its conduction and respiratory zones, brings air from the environment to the lungs and facilitates gas exchange both in the lungs and within the cells.
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body needs oxygen cause we are human beings and they are many organs in our body which need oxygen to accelerate
if we did not get oxygen only for 5 sec there will be disaster on earth
by oxygen get energy to do work and to do everything we do in our everyday life
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