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प्रश्न
Mountaineers carry oxygen in cylinders when they climb mountains that are more than 5000 m high. What could be the reason for that?
उत्तर
As we climb up the heights, the air at the top becomes rare. At the height of 5000 m or more, the air is very rare. The oxygen may be limited here. Therefore, the mountaineers carry oxygen in cylinders when they climb mountains that are more than 5000 m high.
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