Answer:
The Louisiana purchase
Explanation:
with more land, slaves and travelers settled in
The protectionism adds a new kind of tax on the imports called Tariff. With the Tariff, the price of imports is increased, and becomes more expensive than locally produced products. This will protect the domestic economy.
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Answer: Coal
The industry exploded after the war becoming more important to economy
Answer:
Economic crisis in other countries
Explanation:
