Ancient River Valley Civilizations

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Across
  1. 3. Nile
  2. 6. Trade
  3. 9. Ziggurat
  4. 10. Papyrus
Down
  1. 1. Mesopotamia
  2. 2. Irrigation
  3. 4. Egypt
  4. 5. Scribes
  5. 7. Indus
  6. 8. India