Question

Why do mountaineers carry oxygen cylinders with them when they climb mountain

Answer 1

ANSWER: The mountaineers carry oxygen cylinders with them because 1) The mountains are in very high altitude.

2) When we go upward direction the oxygen level becomes low.

3) Hence,the mountaineers carry oxygen cylinders with them when climbing the mountain

Answer 2

They take oxygen tanks with them because it'll be harder for them to breathe as the altitude increases and the gases get rarefied.

Explaination:

The presence of atmosphere extends to about 10000 kilometres from the earth's surface. But it is estimated that about 97 percentage of the atmospheric air remains within 29 kilometres from the earth's surface. The gases get rarefied with increasing altitude.