Answer:
the scattering and reflection of light by dust particles
Explanation:
The process of scattering is responsible for the different colors we see in the sky.
Different colors have have some different wavelengths, and hence, scatter accordingly.
The small dust particles that is present in the air , gets scattered as the light falls on the dust particles , and hence give various colors to the sky , since , blue is the color that is scattered the most , therefore , maximum sky is blue in color .
Similarly during night time , there is no light , hence , the sky appears dark.
