Question

What is ment by breathing?​

Answer 1

Answer:

The process of respiration, during which air is inhaled into the lungs through the mouth or nose due to muscle contraction and then exhaled due to muscle relaxation. It is called breathing.

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Answer 2

To live, all living things require oxygen. The process of breaking down food particles into energy necessitates the presence of oxygen.

Explanation:

• In other words, breathing is the process of inhaling oxygen and releasing carbon dioxide. This is referred to as ventilation. Breathing, or external ventilation, is the outward and inward movement of air into the lungs.
• The breathing rate, as previously stated, varies from person to person, ranging from 15 to 18 times per minute. The pressure of air plays an important part in understanding the mechanism of breathing.
• The alveolar spaces of the lungs actively take in air during inspiration; when the pressure inside the lungs surpasses the pressure of the atmosphere during expiration, the oxygen is expelled as carbon dioxide.