Question

why the sky is blue?

give appropriate answer.
I will mark brainliest answer

Answer 1

$hey \: dear \: here \: is \: your \: answer$

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✯ the longer wavelength colours of white light such as Red, Orange, Yellow do not scatter by the air molecules because the size of wavelength of these colours is bigger than the size of air molecules (nitrogen and oxygen) but shorter wavelength colour such as blue scatter by the air molecules because the size of wavelength of blue colour is less than the size of air molecules, so blue colour spread in random direction and hence the sky appears blue in the daytime.

↪ but in outer space and in the night time the sky appear black because in outer space there is no atmosphere and in night time there is no sunlight.


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$hope \: this \: helps \: u \: dear$
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Answer 2

A clear cloudless day-time sky is blue because molecules in the air scatter blue light from the sun more than they scatter red light.  When we look towards the sun at sunset, we see red and orange colours because the blue light has been scattered out and away from the line of sight.