Question

Mountaineers carry oxygen cylinder with them because: a. The air is very cold up the mountain b. There is less amount of oxygen in the air at the top of mountain c. They feel happy carrying the oxygen cylinders d. Oxygen is required for burning

Answer 1

Answer:

its B

Explanation: they carry oxygen cylinders with them beacuse at high altitudes there is lower oxygen levels as well as lower humidity. So you lose more water and oxygen as compared to normal, and hence you require oxygen tanks.

Answer 2

Answer:

option b.There is less amount of oxygen in the air at the top of mountain