How did racism affect the status of africans in america?

Idon't really understand the question. it counts for 20% of my lesson grade and i really need putting the answer into words. anything will . i need asap so im awarding 30 points.a disagreement between states of the united states concerning the rights of states vs. the authority of the national government led to the civil war. state governments were forced by war into a subservient position. what might happen if national governments ceded their authority to a world government by international treaty?

Brainliesttt asap!me : describe the responses to terrorism in the united states.

Roosevelt's “four freedoms” speech relies so heavily on emotional appeal that its structure is missing .