Question

Why the colour of sky is not Red

Answer 1

when the sunrays struck with the particles in air the particles diffuse blue colour so the sky appears blue but the particles do not diffuse red light thats why the sky not appears red

Answer 2

here is you answer
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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 redand orange colours because the blue light has been scattered out and away from the line of sight.

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