The main issue that caused concern between the federal and state governments in the 1800s was Control over slavery.
<h3>Why was this the main issue?</h3>
In the 1800s, the issue of slavery was very contentious with the federal government being controlled at different times by pro and anti slavery politicians.
They therefore came into conflict with states on the issue of slavery with this eventually culminating into civil war.
In conclusion, option C is correct.
Find out more on federal v. state issues at brainly.com/question/5496965.
During the cold war, all of us know that America and the Soviet Union were putting the best scientist of there country in the front to develop weapons of mass destruction.
What most don't know is that not only the Russians but the Americans had embedded spies in them to recover weapon specs and also the science between them. In fact, the cold war is known as the golden-age of espionage.
The Danube and Rhine rivers.
it was for more than 500 years
The <span>"Great Dismal Swamp" </span><span>is the name of an area in Virginia and North Carolina that is now a National Wildlife Refuge</span>