Answer
Indus valley civilization is the answer
Answer:
tensions between northern and southern states over slavery, states' rights and westward expansion
5) 3,500
6) 3.59
7) 4.7
8) 20
9) 1,250
10) 315
Germany prompted the United States to join World War I because of it's violation of the pledge for unrestricted submarine warfare in the North Atlantic Ocean and Mediterranean Sea, as well as enticing Mexico to turn against the United States. I hope this helps :)
