When the Sun is near the horizon during the morning or evening, it appears reddish. The phenomenon that is responsible for this observation is

A Reflection of light
B Refraction of light
C Dispersion of light
D Scattering of light

Correct Answer: Scattering of light

The red colour in the sky at sunset (and sunrise) is due to an effect called Rayleigh scattering. There is a similar form of scattering called Mie scattering which is responsible for the white colour of clouds.

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