Brainliesttt how did migrations impact africa? focus on the causes and effects of each. -northern and eastern migrations: -bantu migrations:

in november 1781, john hanson became the first president of the united states in congress assembled, under the articles of confederation. many people have argued that john hanson, and not george washington, was the first president of the united states, but this is not quite true.

explanation:

food chain i would say only because there is competition on getting food and survival