Amit went on a mountain for trekking. After reaching at about 2000m height, he experienced difficulty in breathing. His rate of breathing increased and he decided to discontinue the trek and return back to the ground. Being concerned about his health, he consulted his doctor friend about it. His friend explained that it is normal phenomenon and he should have carried an oxygen cylinder while going for the trek. A) Why is it difficult to breathe as we go up on a height? B) Why does his friend suggest him to carry an oxygen cylinder? C) Which component of blood shows increase when someone moves from plains to higher altitudes?
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because at 2000 height the oxygen in the air becomes low that's why the person make find difficulty in breathing.
B so that when he will get difficulty in breathing he might use oxygen cylinder.
blood circulation
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