The correct answer should probably be The Mayan civilization was not built around a major river.
Most Mayan cities were found by archeologists deep inside of jungles, hidden from the world, away from rivers, whereas Mesopotamia was built on Tigris and Euphrates.
Lost land.
Increased deaths due to no immunity.
Loss of cultural practices. (Buffalo)
A. colonists wanted to settle in the ohio valley and land father west
This question is a nightmare. The right answer isn't really there. A short answer would be that New England didn't want a second war with Great Britain. There was a real gaffuffle about pressing American seaman into British Navy vessels that cause Jefferson to impose an embargo. All of this centered about the war of 1812.
The choice is between A and B. I would pick A, but I can't eliminate B.
C and D are not really amongst the reasons, particularly C.