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Question

Arrange the following activities in the order of increasing breathing rates and give reason for your answer.

(i) Sleeping
(ii) Watching T.V.
(iii) Brisk walk
(iv) Cycling

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Solution

Cycling > Brisk walk > Watching T.V. > Sleeping

Whenever a person does an activity, the breathing rate becomes faster. It further increases with strenuous work to provide more oxygen to the cells to get more energy.

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