Question

why we breathe? And tell some function of oxygen.​

Answer 1

Explanation:

Your body cells use the oxygen you breathe to get energy from the food you eat. This process is called cellular respiration. During cellular respiration the cell uses oxygen to break down sugar. Breaking down sugar produces the energy your body needs.

Answer 2

Answer:

our body need oxygen to do body functioning i which area is oxygen is present where fire is easily obtained

Explanation:

breathing use chemical and mechanical process to bring oxygen to every cell of the body and to get rid of carbon dioxide our body need oxygen to obtain energyto fuel all our living procces . carbon dioxide is waste product of this process