Reyne's Sustainability Crossword Puzzle

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