Why is it necessary for mountaineers to carry oxygen cylinders with them??????
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Answer:
It is necessary for the moutaineers to carry oxygen cylinder with them
Explanation:
Oxygen is 21% present in the atmosphere. With increase in altitude, the atmosphere gets thinner and the supply of oxygen is reduced. This causes difficulty in brething in hill stations and mountains. Therefore, while climbing high mountains, mountaineers carry oxygen cylinders with them.
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