Why does the respiration rate increase after exercise? is not more than 40 words
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Answer:
Find the length of a cuboidal box of breadth 20cm, height 15cm and volume 7500 cubic cm. Also give
the volume in :
a) Litres b) cubic metres
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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.
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