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Subject :NSO    Class : Class 7

Which of the following processes occurs during inspiration?

ARelaxation of diaphragm muscles and increase in size of chest cavity.
BContraction of diaphragm muscles and increase in size of chest cavity.
CRelaxation of diaphragm muscles and decrease in size of chest cavity.
DContraction of diaphragm muscles and decrease in size of chest cavity.


Ans 1:

Class : Class 1
inspiration means inhalation

Ans 2:

Class : Class 8
inspirationwhat

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