Home Biology Organisms and Populations Organism and its Enviornment At higher altitudes man suffers from fatigue…
Biology Organisms and Populations Organism and its Enviornment Single Correct MCQ
Published on: August 21, 2026

At higher altitudes man suffers from fatigue heart palpitations, nausea, etc due to-

A
Reduced air pressure
B
Increased air pressure
C
Excess of oxygen in air
D
Very low temperature

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The correct answer is:
A

At high altitudes, atmospheric pressure decreases, which reduces the availability of oxygen. This leads to symptoms like fatigue, nausea, and heart palpitations (a condition called altitude sickness).

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