In the early 1800s, why was there so little settlement on the great plains?

Which statement best describes the underground railroad? a.) it is a train that took slaves from the south to the north. b.) it is a business that harriet tubman founded to slaves become free. c.) it is a secret route that slaves took to escape from southern slave states to the north. d.) it is a road that slave owners disliked using for travel.

Which statement is true about citizenship and the us government

In 1912, the imperial system that had ruled over china for thousands of years