Question

Mountaineers at high altitudes experience bleeding through their nose. Give reason​

Answer 1

Atmospheric pressure decreases with increase in altitude. Therefore, as we go higher the pressure within the blood vessels exceeds the outside pressure. This causes the blood vessels to rupture. As a result, a mountaineer suffer nose bleeding, ear bleeding etc.

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Answer 2

Answer:

Mountaineers at high altitudes experience bleeding through their nose because as they climb higher, the amount of oxygen in the air decreases. This makes the air thinner and dryer, which can in turn cause the inside of their nose to crack and bleed.