what is uv rays? give brief description.
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Ultraviolet (UV) radiation is a form of electromagnetic radiation that comes from the sun and man-made sources like tanning beds and welding torches. Radiation is the emission (sending out) of energy from any source.
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Ultraviolet (UV) radiation is a type of energy produced by the sun and some artificial sources, such as arc welders and solariums. The sun's UV is the main cause of skin cancer. Too much UV exposure also causes sunburn, tanning, premature ageing and eye damage. You can see the sun's light.Ultraviolet radiation is the portion of the electromagnetic spectrum extending from the violet, or short-wavelength, end of the visible light range to the X-ray region.
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