Hello
Polythesim, flooding of the river, protection from natrual barriers and trading along the silk road
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Answer:
A lot of people from other countries immigrated to USA.
Explanation:
The three acquisitions that greatly expanded the territory of America before the civil war were <span>Northwest territory, Texas and Louisiana Purchase. The correct options among all the options that are given in the question are option "A", "C" and "D". I hope the answer has come to your help.</span>
