Question

how do social difference arise

Answer 1

when one difference among peoples in particular society becomes more important than any other difference at that time social difference occurs. for example when white peoples become rich & more important than the poor ones who are blacks, due to this social difference arises.
HOPE U UNDERSTANDS IT........

Answer 2

When people of one community feel that they are different from others in one or many ways then social difference arises. If more than one social differences come together, it forms a social division.

Hope it helps;)