Do brisk walk in a particular area of school/class and return back to class in 40 seconds along with few other students. Stand in front of the class. You will notice that all of you are breathing very fast. Now answer the following questions.
A. Why are students breathing fast?
B. Why breathing fast helps you to run?
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Answer:a. Normal Breathing Rate for Kids — How fast they breathe can be a signal. If it's a bit too quick, that can be one of the first symptoms of a lungs
b.During running, some muscle cells respire anaerobically due to lack of oxygen and form lactic acid. In order to convert this lactic acid into carbon dioxide oxygen is required. Therefore, we breathe faster and deeper than usual to produce more oxygen and meet the extra demand for energy.
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