The reason why the sky is blue is best explained by
A) the greenhouse effect.
B) Rayleigh scattering.
C) the dew point.
D) auroras.

Question

Quizplus · Accepted Answer

Rayleigh scattering is the phenomenon that explains why the sky is blue. It occurs when sunlight enters Earth's atmosphere and is scattered in all directions by the gases and particles in the air. Blue light is scattered more than other colors because it travels as shorter, smaller waves. This is why we see a blue sky most of the time.

The Reason Why the Sky Is Blue Is Best Explained