UV
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It has been suggested that this article or section be merged with [[::Ultraviolet|Ultraviolet]]. (Discuss)
UV is ultraviolet radiation.
Ultraviolet radiation is a portion of the electromagnetic spectrum with wavelengths shorter than visible light. The sun produces UV, which is commonly split into three bands: UVA,UVB, and UVC.
UVA is not absorbed by ozone. UVB is mostly absorbed by ozone, although some reaches the Earth. UVC is completely absorbed by ozone and normal oxygen.