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The Chinese created things called "Terraces" which were flat areas to help them raise their crops.
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Answer:
US Population Rank US Pop Rank City 1920 Population 41: San Antonio: 161,379 42: Dallas: 158,976 45: Houston: 138,276 65: Fort Worth: 106,482 89: El Paso: 77,560.
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D. The Great Plains contained very little game to hunt, and people could not live there year round.
