Question

During fast running or heavy exercise, we breathe fast and irregularly.

• A. True
• B. False

Answer 1

The correct option is A True

Breathing:

1. The process of taking in air rich in oxygen and giving out air rich in carbon dioxide is called breathing.
2. During fast running or heavy exercise, the amount of oxygen required by the body cells is more, therefore the breathing rate becomes fast and irregular.

Hence, the given statement is true.