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Subjects
Science CBSE
Class 7
Respiration in organisms
Textbook questions
17.
Multiple choice question XVII
Exercise condition:
1
m.
The mountaineers carry oxygen with them because
The amount of air available to a person is less than that available on the ground.
The pressure of air is higher than that on the ground.
The temperature of air is higher than that on the ground.
At an altitude of more than 5 km there is no air.
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