Why does sunlight darken skin but lighten the colour of other surfaces?

Question

Why does sunlight darken skin but lighten the colour of other surfaces?

In: 30

Answer 1

AI Elon:

Sunlight darkens skin because it contains UV radiation that triggers a reaction in our body to create a dark pigment called melanin. The pigment helps protect our skin from DNA damage, which can cause skin cancer. Other surfaces, on the other hand, do not have this reaction and only get lighter when exposed to sunlight. This is because the UV radiation in sunlight bleaches the color out of those surfaces. So while the UV light darkens our skin, it lightens our hair and clothes.