There are racial groups because some people don't like other types of people because of there looks...it's not good for people to judge people by their physical looks, but by their way of acting against or with other people
No, they are not racial groups but religious groups.
co-existant of a variety of distant racial groups co-existant of a variety of distant racial groups
People from a different racial groups are unemployed in certain sectors of the economy and not in others as a result of discrimination. Racial discrimination makes some racial groups to feel superior over others.
The Shona and the Ndebele are the main racial groups in Zimbabwe.
Between 1995 and 2000 in the United States, there was continued growth in the Hispanic and Asian populations through both immigration and birth rates. The Black population also increased during this period, while the White population growth slowed down. Overall, there was increased diversity due to these shifts in racial and ethnic demographics.
some racial groups are superior to others
The patterns of interaction between majority and minority racial and ethnic groups varies between groups. Many majority groups will look down on minority groups as if they do not have equal rights.
The Nazis were interested in exterminating groups that they felt were inferior. Jews, disabled people, Slavic people, and gypsies were the groups that were exterminated on racial grounds.
Whites
segregation
The answer is simply discrimination. There is no valid reason that people from different racial groups are unemployable in certain sectors of the economy and not in others except for racial discrimination and prejudice.
The commonly accepted definition of the word biracial is "containing members of two racial groups". This is mostly associated with a person who has parents from two racial groups.