Why the sun lightens our hair, but darkens our skin?

I think because it brings moisture to the hair

All sun does is energize. Now different things react differently to energy and thats the reason I guess.

Sun is very generous. He is striving hard to make this earth beautiful. His intention to make our hair and skin like you have told is to make the ugly beautiful one and the beautiful to be more beautiful. He is thinking that if more beautiful people live on this earth, everyone will be generous to buildup friendship. He told be all this when we met last month during a FRIENDSHIP CONFERENCE !!!!!!!!!!!

Because what our skin is made out off isn't the same thing our hair is made out off.

oh yeah, im curious about that too. how come? i hate it when im under the sun, cos i get burned. i get sunburn my hair get so dried up. so my hair gets split-ends it makes my hair a bt\it lighter and brown.