How would transportation improvements eventually aid the economy of the united states?

As farmers shifted from growing just enough to sustain their families to producing crops for sale, demand grew for cheaper and faster ways to get goods to market.

Explanation: I hope this helps :)

"a government in which power is divided between state and national levels". federalism is a system of government in which entities such and state and province, share power with the national government.

b. the 200th birthday of the united states