How geography has influenced settlement trade and government in north america

in the early history of the U.S. Warm weather and rich, flat farmlands made the South more suitable to plantation slavery and forced African settlement than either the North Central or New England areas.

in the  the Northern States were forced by circumstances into a more mercantile traditions. such as fishing and other trades this was because their geography.

the correct answer would be true friction causes the faults to slip or collide

i'm sure the answer you are looking for would be

a. an ice age

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