Question

why we are oxygen instead of carbondioxide​

Answer 1

Answer:

because you need oxygen for some biological processes. A fairly important one is the production of ATP, the energy all of our cells use. In the process, electrons are used and oxygen has a high affinity for electrons. The waste products of this process are Carbon Dioxide and Water, in different steps along the way.

Answer 2

Answer:

Because we need the oxygen to turn the glucose into energy. N without oxygen the production stops.....

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