The primary effect of the Dred Scott decision, based only on the option in this list, was that "Congress could not prohibit slavery," but mostly it meant that blacks weren't considered citizens and thus could not sue for their freedom.
He was the first African to be elected into Congress in 1870
I believe the answer is D. Agricultural. Because the meaning is to grow things
Almost 20% of the United States GDP is actually made up of Government Spending.
Contrary to popular belief the United States is NOT an example of a pure capitalist state.
The government intervenes quite often to provide schools, food banks, hospitals, universities, roads and even bails out banks and large corporations. The government even has anti-competition and anti-monopoly laws.
A pure capitalist state would mean even lower intervention by the Government and a free hand of Demand and Supply.
The answer would the Columbian Exchange.
