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    4. Why is the sky blue?
    Why is the sky blue?

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    0  Views: 750 Answers: 1 Posted: 14 years ago
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      The reason that the sky is blue: short wavelength light (such as blue and pale blue) is scattered by air much more then long wavelength light (such as red). Blue is the shortest wavelength that's visible and that's why the sky looks blue.

      13 years ago. Rating: 1
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