MCQ
Mountaineers carry oxygen cylinder with them because:
- AThe air is very cold up the mountain.
- ✓There is less air on the top of the mountain.
- CThey feel happy carrying the oxygen cylinders.
- DOxygen is required for burning.
✓
Answer
Correct option: B.
There is less air on the top of the mountain.
There is less air on the top of the mountain.
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