Why does human skin darken when exposed to su | vedclass

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(B) When human skin is exposed to sunlight for a long period,it absorbs ultraviolet $(UV)$ radiation. To protect the deeper layers of the skin from th

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Due to the absorption of ultraviolet rays.

Vedclass · Answer

(B) When human skin is exposed to sunlight for a long period,it absorbs ultraviolet $(UV)$ radiation. To protect the deeper layers of the skin from the harmful effects of these $UV$ rays,the body produces more melanin,a pigment that darkens the skin. This process is the body's natural defense mechanism against $UV$-induced damage.

Why does human skin darken when exposed to sunlight for a long period of time?

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