The answer is, in fact, the second answer choice!
Over population is caused many people moving there for business and not enough leaving and or space or job shortage it leads to crowding and shortages
Answer:
-technological advance like Steam powered riverboats
-means to control disease
-they were no longer confined to the coast
Answer: The tariff helped to increase Nationalism and helped the economy because it protected American goods of foreign competition and the US could buy cheaper products.
