The three principal ways civilization spreads from one region to another is through trade, travel and warfare. When people travel, they bring with them goods from their region to another and this would be the start of contributing and sharing, and trading their ways and ideas of growing crops and raising other goods. It can also be spread through wars. Through this, different relationships emerged.
Explanation:
the northeners opposed slavery because they were scared the freed slaves would take there homes food and jobs
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Answer:
Explanation amogus is the answer for B
