1. What role did geography play in the growth of three distinct cultural regions in the English colonies?

The correct answer is

Geography and climate determined what kinds of crops could be grown, leading to differing structures for economies and settlements.

It split the country into three regions in which things like cotton, cash crops, tobacco, corn, wheat, and similar things could be grown. South was generally better for things like cotton and tobacco, with there being the famous type of tobacco called Virginia, coming from Virginia.