The development of farming was crucial to the formation of civilization since this allowed for there to be a surplus of food, which meant that people could devote themselves to other tasks and skills that are necessary for society to form.
D, because whether or not the rivers flow into the mediterranean has no effect on early civilization.
The main factor that influenced African Americans to migrate from the South to Northern cities was that they were looking for better economic opportunities.
The Great Migration, also known as the Great Northward Migration in the 20th century, happened because most black people were badly treated by many people that still expected African Americans to be slaves, and their economic conditions were quite poor.
As a result, African Americans decided to migrate to the Northern cities, where they would get many job opportunities as well as going to have a better lifestyle by not being discriminated.
The legislative branch makes laws, the judicial branch interprets laws, the executive branch enforces laws
The buffalo soldiers were expected to be the weaker lot - not as good as the white soldiers, most people who were in the army did not have much hope for them.They did not get as good quality guns,they had old uniform given out to them and got second priority after the white soldiers-I.e if there wasn't enough tents for both lots the white soldiers would come first so they would get the tents while the buffalo soldiers would have to sleep on the ground.Racial Abuse was experienced continuously, at the start of the buffalo soldiers time , slavery had just been abolished so it was difficult for black soldiers to be seen equal and free to the white soldiers who were used to treating them horribly, and saw the black soldiers as unable and useless.The black and white soldiers were also segregated into separate lots.
Now that is not the case, racism is not tolerated even though unfortunately it still happens in some cases.