Question 4

Mountaineers carry oxygen cylinders with them because :

a) There is no oxygen on high mountains.

b) There is deficiency of oxygen on mountains at high atltitude.

c) oxygen is used for cooking.

d) oxygen keeps them warm at low temperature.

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Solution

At higher altitudes, the oxygen content decreases which makes breathing difficult for mountaineers. That's why they carry oxygen cylinders. The correct option is b.

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Similar questions

Statement I: Mountaineers carry oxygen cylinders with them while climbing high mountains.

Statement II: The percentage of oxygen in air decrease with increasing altitude.

The mountaineers carry oxygen with them because.

Question 13.4

A list of words is given in a box. Use appropriate words to fill up the blanks in the following statements.

Air, oxygen, wind, water vapour, mixture, combination,
direction, road, bottles, cylinders.

Mountaineers carry oxygen ___ with them, while climbing high mountains.

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