How did the Spanish help the Great Plains Indians become better hunters?

2. what was the dred scott decision about? what do we learn from this supreme court case?

Which is an example of a country that is overly dependent on another country for goods and sevices

How did african americans the union during the civil war? a. by serving as representatives in congress b. by enlisting in the military to fight c. by organizing massive slave revolts in the south d. by negotiating for peace with the confederacy