Question

why is breathing called a physical process?​

Answer 1

Breathing is not simply a physical process. A subtle body is between there, which is responsible to connect the physical body and breathing body.

It is just like the process of Solar system. All the planets are rotating the Sun. Is it simply physical process?. We say it is due to gravitational force, But the subtle body between the Sun and the planets are necessary for continuous process.

Answer 2

Explanation:

This process is called respiration. Breathing may be defined as the process of taking in oxygen from the environment and giving out carbon dioxide So, breathing is just a physical process in which no energy is released.