Question

Give reason for the following

(a) appearance of sky is blue.

(b) advanced sunrise and delayed sun set.​

Answer 1

A) appearance of sky is blue

As per fundamental colors of R(red) G(green) B(blue) , the color blue has the shortest wavelength thus scatters in all direction by the molecules present in the atmosphere thus making the color of sky blue.

b) Advanced sunset and delayed sunrise-

Due to atmospheric refraction of the light emitted by the sun.