Question

What causes the scattering of blue component of sunlight in the atmosphere

Answer 1

This redirecting of incoming sunlight by air molecules is called scattering. The blue component of the spectrum of visible light has shorter wavelengths and higher frequencies than the red component. ... The faster the oscillation, the more scattered light is produced, so blue is scattered more strongly than red

Answer 2

blue light waves are smaller/shorter than red light waves. sunlight reaches earth's atmosphere and is scattered in all directions by all the gases and particles in the air. blue light is scattered in all directions by the tiny molecules of air in the earth's atmosphere.

hence the scattering of blue component of sunlight is caused by the tiny particles of air