Unit 1-7 crossword

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Across
  1. 3. a unit of energy contained in food
  2. 8. a text or picture that tells people to buy something
  3. 10. word "solve" as a noun
  4. 11. the type of money that a country uses
  5. 14. substances like calcium, iron and magnesium
  6. 16. at risk of being destroyed or damaged (languages)
  7. 17. the number of people who live in a country
  8. 18. the main office of an organization
  9. 19. word "intention" as a verb
Down
  1. 1. to make a student leave a school permanently
  2. 2. land that is outside towns and cities
  3. 4. no longer active or existing (languages)
  4. 5. a river that falls from a high place
  5. 6. each of the sixty parts of a minute
  6. 7. something that a business sells
  7. 9. someone who buys things from a shop or uses a service
  8. 12. word "argue" as a noun
  9. 13. to send a student away from school for some time
  10. 15. a large area of flat land with very few trees