Question

why do mountaineers use oxygen cylinder​

Answer 1

Answer:

Mountaineers carry oxygen cylinders with them because in high altitudes atmospheric pressure is low which makes air less dense. This makes the volume of Oxygen for breathing very less.

Answer 2

Answer:

Atmospheric pressure is low at high altitudes. The volume of air increases and the air becomes less dense because the volume is inversely proportional to density. Hence, a lesser volume of oxygen is available for breathing. Thus, mountaineers have to carry oxygen cylinders with them.

Mountaineers carry oxygen cylinders with them because in high altitudes atmospheric pressure is low which makes air less dense. This makes the volume of Oxygen for breathing very less.