Question

what is the rate of breathing at rest and during exercise?

Answer 1

Explanation:

When you exercise and your muscles work harder, your body uses more oxygen and produces more carbon dioxide. To cope with this extra demand, your breathing has to increase from about 15 times a minute (12 litres of air) when you are resting, up to about 40–60 times a minute (100 litres of air) during exercise.

Answer 2

Answer:

while exercising rate of breath increase from about 15 Minutes (12 litres of air)

and while you are resting after excercise the rate increase with 40-60 minutes (100 liters of air)

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