what is ultraviolet light.how does it harm humans?No spam answer
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UV rays, either from the sun or from artificial sources like tanning beds, can cause sunburn. Exposure to UV rays can cause premature aging of the skin and signs of sun damage such as wrinkles, leathery skin, liver spots, actinic keratosis, and solar elastosis. UV rays can also cause eye problems.
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Answer:
hello you r from south Korea, good
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i am from India.
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