08-09-2010, 12:51 AM | #1 (permalink) |
Join Date: Dec 1 2009 Location: Midwest
Posts: 190
Rep Power: 15 | How Tanning Happens http://kidshealth.org/teen/safety/sa...s/tanning.html "UVB radiation burns the upper layers of skin (the epidermis), causing sunburns. UVA radiation is what makes people tan." :P |
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