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    4. why is the sky blue?
    why is the sky blue?

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    0  Views: 844 Answers: 2 Posted: 12 years ago
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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 red and orange colours because the blue light has been scattered out and away from the line of sight.


      http://hepth.hanyang.ac.kr/~sjs/physics/blue_sky.html


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      10 years ago. Rating: 4
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        The skies are blue because of the matter the sun's rays pass through in our atmosphere. When the rays pass through, the wave length hit what's called Rayleigh, which the eye sees as blue in the color spectrum. 

        12 years ago. Rating: 0
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