Ancient China Crossword puzzle

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Across
  1. 2. a protective coating made by the sap of a special tree
  2. 4. person with higher authority
  3. 6. an ancient Chinese philosophy that a strong leader and legal system are needed to make a social order
  4. 10. representative of a government sent to another country
  5. 11. a long wall that runs east and west along China's northern border
  6. 13. general study of knowledge and the world
  7. 14. a style of food
  8. 15. the right to rule a dynasty by the choice of the heavens
  9. 17. a tool uses to measure earth quakes
  10. 18. The people who work for the government
Down
  1. 1. series of trade routes
  2. 2. a dustlike material that can form soil
  3. 3. military ruler
  4. 5. art of beautiful writing
  5. 7. to set rules and make things more similar
  6. 8. devotion of children to there parents
  7. 9. single person of a group who controls the production of a good or service
  8. 12. total disorder and confusion
  9. 14. to keep objectional material from being revealed
  10. 16. therapy that uses needles to cure sickness and stop pain