Unit 3,4,5

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Across
  1. 3. A very tall building.
  2. 5. Shared customs and beliefs of a group.
  3. 8. City focused on environmental friendliness.
  4. 11. The removal of a forest.
  5. 13. The process of changing to fit new conditions.
  6. 16. A gas that forms a layer in the upper atmosphere.
  7. 17. Working together.
  8. 18. Travel for pleasure.
  9. 19. Clever or intelligent.
  10. 22. Former treaty organization in Southeast Asia.
  11. 25. Slow moving lines of cars; a major headache for drivers.
  12. 29. Shared travel systems like buses and subways.
  13. 30. People or countries belonging to a group.
Down
  1. 1. Related to a town or city.
  2. 2. Measurement of heat or cold.
  3. 4. A long time with no rain.
  4. 6. A regional group of 10 SE Asian countries.
  5. 7. Glass structure for growing plants.
  6. 9. The long-term weather pattern.
  7. 10. Vietnam's capital city.
  8. 12. Money and business activity of a country.
  9. 14. LEVEL Height of the water's surface.
  10. 15. A relationship between two or more people/groups working together.
  11. 17. Element found in coal and diamond.
  12. 20. Related to the Earth's ends (North or South).
  13. 21. Relating to a specific geographical area.
  14. 23. A person who lives in a major metropolitan area.
  15. 24. The application of scientific knowledge for practical purposes.
  16. 26. Plants and flowers grown on top of a building.
  17. 27. Time yet to come.
  18. 28. Exchanging goods for money.