Ancient Chinese Crossword

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Across
  1. 3. it is a new addition
  2. 5. what no longer destroyed their crops
  3. 7. where was the great wall built
  4. 8. how many dams were built in 1960?
  5. 11. who ruled over china for several centuries?
  6. 13. what dynasty was the great wall built in?
  7. 16. how did the yellow river contribute?
  8. 18. what is the busiest river in the world?
  9. 20. how long did the great wall take to build?
Down
  1. 1. great wall was used for what?
  2. 2. long construction
  3. 4. what means Clay of Snow?
  4. 6. what did the wall protect china from?
  5. 9. how many died building the great wall?
  6. 10. great wall is declared as what
  7. 12. what is a resource for the dry north china
  8. 14. how important is the yellow river?
  9. 15. sixth longest river in the world
  10. 17. covers most of the the map in ancient china
  11. 19. known for its dunes and mountains