It is because at high altitudes the oxygen is not sufficient..........
Mountaineers carry oxygen cylinders at high altitudes where the air is thin and oxygen levels are low to prevent altitude sickness and hypoxia. Spacemen carry oxygen cylinders in space where there is no breathable air available, ensuring they have a supply of oxygen to breathe in their spacecraft or during spacewalks.
because the higher you go up a mountains are the less oxygen there is.
Mountaineers condition themselves by expanding their lungs. They carry oxygen on climbs to altitudes where it will be needed.
Mountaineers carry oxygen cylinders at high altitudes to supplement the reduced oxygen levels in the air. This helps prevent altitude sickness, improves physical performance, and reduces the risk of life-threatening conditions such as hypoxia and cerebral edema.
Climbers need to wear oxygen masks to help them breathe as the air is thin higher up Mount Everest than at sea level.
the air becomes rarefied and has a very low oxygen
At extreme altitudes, the air becomes rarefied and has a very low oxygen concentration. This can lead to a condition known as hypoxia, which is deprivation of oxygen to the brain, which can cause loss of consciousness, paralysis, and death.
Because at great heights ie up mountains the air becomes 'thinner' this means there is less oxygen and so it is harder to breathe. So they carry the oxygen so that they can continue up the mountain otherwise they will be unable to coninue because it is dangerous.
because the air gets thinner and thinner the higher you go, the oxygen is for survival.
I dont know, not while I've been alive
So they can breath at a very high altitude and the temperature decreases as we go higher.
because external pressure is low on the montains and food dont cook easily that is why mountainers carry with them pressure cooker........