Mountaineers carry oxygen cylinders with them because they need it for 

1
Cooking food as availability of fuel is less in mountains.
2
Keeping them warm by burning oxygen in it.
3
Breathing as less oxygen is available at high altitudes.
4
Putting up support for tents.
5
Question Not Attempted

Sponsored

hivanix.in

Visit

This quiz is brought to you by hivanix.in

🌐 Web App Development

Quick Navigation