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Assertion (A): When a person need extra energy, breathing rate is increase.
Reason (R): If breathing rate is more, the amount of oxygen supplied to the body increases.

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Both A and R are true and R is the correct explanation of A

Both A and R are true but R is not the correct explanation of A

A is true but R is false

A is false but R is true

answer is A.

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Detailed Solution

For example, when a person does heavy exercise, he needs more energy, hence require more oxygen. This in turn increases the breathing rate of an individual.

A is the correct option.

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