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Air Around Us — Science STD 6 — Question

CBSE BoardEnglish MediumSTD 6ScienceAir Around Us2 Marks
Question
Why do you think, mountaineers carry oxygen cylinders with them, while climbing high mountains?
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Answer

As we go higher on the mountains, the air becomes thinner. The amount of oxygen decreases and it becomes hard to breath. Therefore, mountaineers carry oxygen cylinders with them.

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