Answers

2016-04-30T22:11:43+05:30
The colour of the sky appears blue to us because the molecules which are present in air scatter less red light coming from the sun but the molecules scatter blue light more coming from the sun so the sky appears to be blue to us.
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2016-04-30T22:22:00+05:30
Becooz of scattering of light    the skey is blue


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