The colour of the sky , in direction other of the sun, is blue.explain.

Dear student,
 

The sky appears blue because the molecules of air in the atmosphere scatter the blue portion of light as sunlight passes through the atmosphere.

The Earth’s atmosphere is filled with trillions of tiny dust particles. Most of these particles or particulates are too small to be seen with the human eye. The smallest particulates are by coincidence the same length as the wavelength of blue light. 

As the light from our Sun shines into the atmosphere most of the colors are able to reach the Earth’s surface uninterrupted. However, because blue light has a wavelength that is the same size as the particulates in the air, this light is scattered in every direction. This blue light bounces from particulate to particulate until it eventually reaches your eyes. For this reason, no matter what direction you look in the sky, it appears to be blue. This blue light originated with the Sun, was bounced around in the sky many times, and then eventually reached your eyes.

Regards
 
 

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