Reyne's Sustainability Crossword Puzzle

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Across
  1. 2. animals
  2. 4. different types of natural formations
  3. 7. dirty air
  4. 8. close to extinction
  5. 10. teach
  6. 11. animals home
  7. 13. plants
  8. 14. planet
Down
  1. 1. you throw this away
  2. 3. nature
  3. 5. to make smaller
  4. 6. to keep tidy
  5. 9. reprocess
  6. 12. crisp and bright
  7. 15. use again