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Name the phenomenon responsible for (i) ...

Name the phenomenon responsible for (i) advance of sunrise (ii) colour of water in deep sea (iii) twinkling of stars and (iv) reddish appearance of the sun at the time of sunrise and sunset.

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(i) Atmospheric refraction (ii) Scattering of light.
(iii) Atmospheric refraction (iv) Scattering of light.
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ZEN PUBLICATION-THE HUMAN EYE AND THE COLOURFUL WORLD-ZEN ADDITIONAL QUESTIONS SECTION - SHORT ANSWER TYPE QUESTIONS - I
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