Question

Explain why exhaled air contains more carbon dioxide than inhaled air for class 7 students

Answer 1

Answer:

... During breathing, we take air into our lungs through the nose, and then expel it. The air which we take into the lungs is rich in oxygen but the air expelled from the lungs is rich in carbon dioxide

Answer 2

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Exhaled air which contains: more carbon dioxide produced as a waste product of energy production. less oxygen as it has been used in respiration.

The air we breathe in contains about 0.04% carbon dioxide. The air we breathe out contains about 4% carbon dioxide. In other words, exhaled air contains about 100 times the concentration of carbon dioxide that inhaled air does.

Exhaled air has more carbon dioxide than inhaled Air because during respiration the food breaks down with the help of oxygen to produce Carbon dioxide and water. ... Therefore Exhaled air contains more Carbon dioxide than inhaled Air.