Question

why is it necessary for mountaineer clinbing high mountain to carry oxygen cylinders with them​

Answer 1

Answer:

Mountaineers carry an oxygen cylinder along with them. It is because when they climb mountains, as altitude increases, the amount of oxygen level in the atmospheric air decreases as trees are not found at higher altitudes. As a result, mountaineers suffer from dizziness. It can also lead to hypoxia.

Answer 2

Answer:

Because at high altitude the oxygen is low and the pressure is maximum