Which factor contributed to the urbanization of the united states during the first half of the 20th century?

the growth of the labor movement

the rise of the nativist movement

the migration of african americans to the north and west

the transition from an agricultural to an industrial economy

the hyksos invasion. the hyksos were able to attack egypt successfully because of their skills in using bronze weapons, composite bows and the use of the horse and chariot during the invasion. although the egyptians depict a barbarian-type overthrow, the truth is the seizure was likely a relatively peaceful one.

after the roman empire, the catholic church began to unify by taking on many duties of a government.