Question

what is the "advantage" of increase in the volume of chest cavity as well as decrease in the volume of chest cavity?CLASS X

Answer 1

Explanation:

when our chest cavity volume increase it means that volume of lungs increase as the result of this the less pressure applied on and when lungs volume decrease then more pressure applied

Answer 2

Answer:

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Explanation:

It is so because when the volume of chest cavity increases the foul air that is carbon dioxide goes out from our body through the lungs but when it decreases or expands the air that is Oxygen comes in our body through lungs