Question

Why do we need oxygen

Answer 1

Answer:

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.

Answer 2

Answer:

Oxygen plays an important role in our lives. We need oxygen to breathe, without oxygen and breathe we will die.

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