The treaty that gave the United States the Oregon Territory meant the US would have access to the Pacific Ocean. Why did Americans want to access the Pacific ocean?

Identify they difference in plant domestication between mesopotamia and mesoamerica during the neolithic revolution

What from the columbian exchange had perhaps the biggest impact on the world?

Which impact did the civil war have on the spread of disease in texas a. disease decreased bc people left the area to fight in the war b. disease increased bc medicine was in short supply. c. disease increased bc many new diseases were brought to the area d. disease decreased bc confederate doctors distribute new medicines to local communities