bleeding of nose occur when we are in high altitude give answer in the base of pressure chapter
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Hot climates with low humidity or changes from bitter cold to warm, dry climates can cause drying and cracking inside the nose, which can lead to a nosebleed. High altitude - asaltitude increases, the availability of oxygen decreases, making the air thinner and drier. The dryness can cause the nose to bleed
sandy070:
this can't be whole reason ... the main reason is the pressure inside our arteries which is way too high than the atmospheric pressure . and we go on high altitude place where there pressure is minimal so the capillaries inside our nose follows the pressure gradient i.e. from high to low pressure and hence blood oozes out .
you are right,there is a pressure difference.
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