M18_L1 Geography and River Valley Civilizations

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Across
  1. 3. way of supplying water to an area of land
  2. 4. large arc of rich farmland extending from the Persian Gulf to the Mediterranean Sea
  3. 6. organized society within a specific area
  4. 7. human-made waterways
Down
  1. 1. arrangement in which people specialize in specific tasks
  2. 2. fertile mix of rich soil and small rocks
  3. 5. more of something than is needed