Which rays can produce colour change in out skin a)ultraviolet day. B)

1.	Which rays can produce colour change in out skin a)ultraviolet day. B)x-Ray .c)infrared ray .d)Gamma rays
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Which rays can produce colour change in out skin a)ultraviolet day. B)x-Ray .c)infrared ray .d)Gamma rays

Answer»

can you TAKE a PHOTO of this QUESTION