Answers

2015-01-03T16:18:27+05:30
Sky appear blue because molecules in the air scatters blue from the sun more than they scatter red light.When we look the sun at sunset,we see red and orange colours because the blue light had been scattered in and out and away from the line of the sight.
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2015-01-03T16:33:01+05:30
It is because of the scattering of light

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