Question

i don't understand why our nose bleeds when we stand at higher altitudes​

Answer 1

Answer:

Nosebleeds can be caused by being up in a very high altitude. As you 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 your nose to crack and bleed.

Answer 2

Answer:

at higher altitude atmospheric pressure inside our body is more than the atmospheric pressure which forces the blood to ooze out from openings like the nose hence the nose bleeding takes place when we are at higher altitudes