Answer:
A disease that was made for soldiers back then
Hey, There! I believe the correct answer for this would be "B. a drastic decline in the American Indian population" during the westward expansion a number of american Indians were pushed of their land and violently oppressed. Many died from diseases and battles to protect their land, but mainly from disease.
Democracy..........Hope it helps, if not just use Google :)
Answer:
I think it changed because they became able to vote I'm 50% sure.
Explanation:
