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What does uv rays do?


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Answered 2011-05-09 07:15:59

UV rays are danerous because they can burn your skin. But they also kill bacteria and UV is also used to detect forgery.

If you want more info about it you can go to the link below. Its a song about different type of light. Its VERY funny!

http://www.YouTube.com/watch?v=bjOGNVH3D4Y

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