Question

People often encounter problem like nose bleeding when they reach high altitude? Why?

Answer 1

Answer:

At higher altitudes our blood pressure is much greater than the atmospheric pressure due to which some of our blood vessels brust leading to the nose bleeding

Explanation:

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Answer 2

Explanation:

At high altitudes, there's less oxygen available. This makes the air thinner and drier. The climate inside your nose also gets drier because of this. This makes the blood vessels exposed inside your nose more likely to burst there than at lower altitudes.