Question

Which gas is released when human beings respire.​

Answer 1

Answer:

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Answer 2

Answer:

Carbon dioxide

Explanation:

Internal and external respiration

At the same time, the carbon dioxide waste from the breakdown of sugars in the cells of the body diffuses into the blood and then diffuses from the blood into the lungs and is expelled as we breathe out. One gas (oxygen) is exchanged for another (carbon dioxide).