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 altitude
(c) oxygen is used for cooking
(d) oxygen keeps them warm at low temperature.
Answers
Answered by
3
Answer:
correct option is B
Explanation:
Because there is deficiency of oxygen on mountains at high altitude
Answered by
2
Answer:
b) there is deficiency of oxygen on mountains at high altitude
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