Why do people have different hair and eye colors?

It is to my understanding that each organisms characteristics developed over millions of years of adaptation, and each characteristic, at some time or another, helped that organism survive. For example, peoples living near the equator tend to have darker skin to protect their skin from sun damage. Why is it then, that in some regions of Europe, many people have blonde, red, or brown variations of hair color? How did it help those people survive in prehistoric times? I pose the same question for eye color. Lastly, why do people in some parts of Asia have different eye shapes than in other parts of the world?Why do people have different hair and eye colors?
it has something to do with the genes


as Gregor Mendel's study says that the most dominant gene is the one that is commonly hereditary to the children in the family!!





i think i got the point of it :DWhy do people have different hair and eye colors?
its all about your genes!