Why are some people black and some are white?
Every single person on earth descended from Africans, the first
human beings. Over hundreds of thousands of years, we changed to
suit our environments as we spread across the globe. Also because
people who have darker skin have more UV protection materials in
their skin which is dark, Africa has extreme temperatures giving
Africans darker skin unlike cocasians, Asians etc. they receive
much colder weather and less UV radiation.