Single Answer MCQ
Q-00001686
Why does the sky appear dark to passengers flying at very high altitudes?
1
Due to the absence of sunlight
2
Due to the scattering of sunlight by the atmosphere
3
Due to the presence of clouds blocking the sunlight
4
Due to the reflection of sunlight by the Earth's surface
Answer and Solution
Answer
A. Due to the absence of sunlight
Solution:
The sky appears dark to passengers flying at very high altitudes because at such heights, the atmosphere is thinner, and there is less scattering of sunlight. As a result, the sky looks dark rather than blue as seen from the ground. Therefore, the correct answer is 'Due to the absence of sunlight'.
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