Answer:
Human societies began to change at the conclusion of the last Ice Age as war between the tribes occurred.
Explanation:
Answer: to organize ideas for comparing and contrasting two topics
Explanation:
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March, 29 1973. If it asks you a reason why the US left Vietnam, it's because the US signed a peace treaty in Paris.
When writing an essay like this, I would devote one paragraph to talking about how supply and demand dictate prices, and another paragraph to how international trade fuels economic growth.