Which ONE of the following was NOT a reason for using oxygen?
A
it gave them psychologicl encouragement
B
it fortified them to live above the limit of natural acclimatization
C
it protects them against the unexpected changes of the weather
D
it quickens their journey to the summit
E
it helps them to survive the worst effects of the weather
Verified Correct Answer: A.
Grammar & Contextual Explanation
No expanded working has been attached for this question yet. The verified answer is Option A.
Source: Myschool Past Questions Archive (Record #14914)