The transfer of which of the following as part of the columbian exchange had the greatest effect on human migration patterns before 1800?

Read the excerpt from the history of herodotus, book 2. egypt . . is an acquired country, the gift of the river. this quotation from herodotus, a greek who traveled in egypt, is about how the nile river enabled ancient egyptian civilization to develop and succeed. what specifically was the river’s gift? fertile soil fishing stocks defensive capabilities drinking water

How do private property rights serve as an incentive in a free enterprise economy ?

Jane determines x = 4 and y = 1 is the solution to the following system of equations.