When agriculture began, the early people farmed, and soon got a surplus of food. This surplus of food meant that not everyone had to farm, and that led to specialized jobs. Specialized jobs led to trade which led to economy, a major key point in a civilization.
Unitary system Is a government that gives all key powers to the national or central government.
The statement that describes cultural influence are all of them except for Florida is a peninsula and The longest river in the United States is the Missouri River.