1. Key words are trade and tariffs. Only economic terms
The treaty of varsailles restricted Germany for example : having a great army and building their navy and stripping away their territories, making the then leaders of Germany upset as well as the German people. hence setting the stage for Hitler to take power and take Germany and the world into ww2
Did they give you any answer choices?
The north was more urban, while the south was more rural.
Southern States were free states; Northern states were slave States.
poltical and economic isolation