Question

when we stand on the surface of the earth every square centimetre of our body experiences atmospheric pressure that is equal to the mass of 100 kg. This pressure is sufficient to grind our body but nothing happens to us.Why?

Answer 1

Even though a large amount of pressure is exerted by the atmosphere on us, our body remains as so because, the blood flowing through our body exerts an equal amount of pressure opposite to the atmospheric pressure. Thus, our body is not crushed.

Answer 2

Explanation:

Human bodies are used to air pressure. The air pressure in our lungs, ears and stomachs is the same as the air pressure outside of our bodies, which ensures that we don't get crushed. Our bodies are also flexible enough to cope when the internal and external pressures aren't exactly the same.