What happens to radiation when it gets to the earth?



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    When radiation from the sun reaches Earth, about 58% hits the surface, the rest having been reflected by the atmosphere back into space. What reaches the Earth is absorbed, and some is used by plants to undergo photosynthesis and create sugars. About 85% of what reaches the surface is absorbed and the rest is also reflected back out, although the atmosphere and greenhouse gasses can trap some of this reflected radiation so that it stays around.

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