Answer:
The Appalachian Mountains
Explanation:
The Appalachian Mountains formed a natural boundary to the west. The geography and climate of the thirteen colonies separated them into three different regions: New England, the Middle Colonies, and the Southern Colonies. New England Coast Rocky coasts are common in New England.
The war caused the united states to enter another severe depression
the united states became the most richest powerful nation in the world
it is asking to explain one way that scholarly disciples not recorded in history have contributed the perspectives explained by Diamond. (who im presuming is the author)
1.) The Big Four are also known as the Council of Four. It was composed of Woodrow Wilson of the United States, David Lloyd George of Britain, Vittorio Emanuele Orlando of Italy, and Georges Clemenceau of France.
2. Germany
3. The restrictions placed on Germany, the blame that was placed on Germany, the money Germany had to pay back for the damage the war had done
C. his comparison of moral courage to bravery in battle and intelligence
(Not sure, but I hope this helps)