Question

The blueness of the sky is mainly due to:
A.The scattering of sunlight by air molecules
B.The presence of water vapor
C.Absorption of blue light by the air
D.Emission of blue light by the atmosphere

Answer 1

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• A clear cloudless day-time sky is blue because molecules in the air scatter blue light from the sun more than they scatter red light.
• The blueness of the sky is mainly due to the scattering of sunlight by air molecules.

↓↓↓So your correct option is↓↓↓

A.The scattering of sunlight by air molecules

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Answer 2

Answer:

The correct answer is option A. The scattering of sunlight by air molecules.

Explanation:

The correct answer is option A. i.e The scattering of sunlight by air molecules. This happens because the molecules present in the air when it is clear and cloudless scatter blue light from the sun. This occurs more rather than scattering a red light. And we see the sun during sunset more orange and red-colored sky appears because of scattering of red color and blue light has already been scattered away.

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