Why So ??

Everything has a purpose, dont you think. Maybe God consider their place of existence. Say for example, Black people often tribe and live in desserts. Since its hot their, dark skin would suit them best. don't you think?

I don't understand exactly what are you asking, if you are asking about the medical reasons, then it is because of the pigment called melanin, whose content in our skin is decided genetically, also some people get dark due to overexposure to sun, I am a perfect example for that. If you are asking for the philosophical reason, I don't think black is something bad, even krshna was dark. I know many dark skinned people who are simply stunning and gorgeous, also other way around, very unimpressive fair skinned people. So, being dark is in no way anything inferior.

i think that depends a lot on climatic condition

If ur dark or fair.... All credits goes to ur parents......lol...

I believe God this for our own good. People that are in Africa have more melon in their skin to protect them from the rays of the sun. People in Europe have less melon and I guess that's to protect them from the climate there, the snow. I believe God made the different shades of skin color for the different environments and climates.

Because may be God doesn't know we fight in skin also :).. No the main reason I believe is God has not given skin to us but its depend upon weather where we are living and after we get it in our hormone through our parents.. so its inherited from parents..

It is the thoughts of God we should not have to interfer in His thoughts. He better knows what He is doing! Aside from this the major fact which I think we have two diffrent skin is nature! A verry good example is we the asians live in a continent or countries where the sun arise daily and get down daily so due to the heat of sun our skin actually burns. And if you realize that on the continent of america and england we oftenly see the sun and it is all snow and all everywhere this is the major fact I think why we have two diffrent skins!