People in the North and South of the US had different opinions on slavery because most people in the North saw slavery as both a moral evil and a useless institution, since slave labor was very minimal in the northern states. People in the South, however, felt that slavery was an integral part of their well-being and economy, since their economy was almost entirely agricultural, with a large number of slaves being worked in the fields.
A. Piedmont but I’m not sure so wait for someone else to answer
Cliff dwellers who disappeared mysteriously were Anasazi Indians
