Answer: D. through interaction and long-distance trade.
Explanation:
Because the Mayans, Inca, and Aztecs had helped by using the Colombian exchange by trading with other countries.
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Answer:
Unlike earlier immigrants, the majority of the newcomers after 1900 came from non-English speaking European countries. The principal source of immigrants was now southern and eastern Europe, especially Italy, Poland, and Russia, countries quite different in culture and language from the United States.
Answer: Some farmers lost their farms or their status as cash or share tenants because of crop failures, low cotton prices, laziness, ill health, poor management, exhaustion of the soil, excessive interest rates, or inability to compete with tenant labor.
Explanation:
