Question

what causes different colors to appear in the sky?
the absorption of light by air molecules
the reflection of light by bodies of water
the greenhouse effect in earth’s atmosphere
the scattering and reflection of light by dust particles

Explanation:

Sky colors result from Rayleigh scattering (by air molecules) and scattering/reflection by dust, water droplets, etc. The correct option directly describes this key mechanism, while the other options are incorrect: air molecule absorption does not create sky colors, water reflection affects surface views not the sky itself, and the greenhouse effect relates to heat retention, not sky color.

Answer:

the scattering and reflection of light by dust particles