PATHOLOGY

Detailed explanation-1: -The amount of inhaled air contains 21% of oxygen and 0.04% of carbon dioxide, while the air we breathe out contains 16.4% of oxygen and 4.4% of carbon dioxide. This is because our cells use oxygen from the inhaled air to release energy and give out carbon dioxide as a byproduct.

Detailed explanation-2: -Answer: The exhaled air contains more carbon dioxide because the carbon dioxide produced during respiration is removed out of the body as the exhaled air during the process of respiration.

Detailed explanation-3: -Inhaled air is a mixture of different gases present in the atmosphere. It contains around 78% nitrogen, 21% oxygen, 0.04% of carbon dioxide and other gases.