What are the reasons for marginalisation groups?

I think the reason for marginalization may be done to an individual or an entire group. The main consequences of being marginalized are from a social and economic perspective. It often involves limited rights for an individual or a group, which makes it difficult to correct the marginalization.

Explanation:

answer; the correct answer to the above statement is to increase the production of milk in a herd of milk cows, the highest producing cows were chosen as the mother;

answer; the population in brazil is very diverse there are many races and ethnic groups