Root of the week

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Across
  1. 2. to see
  2. 6. a book that tells you the meaning of words
  3. 9. a region of the earth's surface and the particular combination of climate,plants, and animals that are found in it
  4. 11. to use tricks and dishonest methods to get what you want
  5. 12. something that is known to have happened or to exist, especially something for which proof exists, or about which there is information
  6. 13. used as a written instruction to tell a reader to look at a particular book, page, etc. for more information
  7. 14. an inability to stop doing or using something
  8. 15. to leave an aircraft in an emergency using an ejection seat
Down
  1. 1. a Scandinavian country
  2. 2. the action of seeing things
  3. 3. minus
  4. 4. the process of the sugar in food or drink changing into alcohol because of a chemical process
  5. 5. to like, choose, or want one thing rather than another
  6. 7. the ability of a wheel or tyre to hold the ground without sliding
  7. 8. A thing
  8. 10. to suddenly go down onto the ground or towards the ground without intending to or by accident
  9. 12. to complete