Crossword 15

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123456789101112131415161718
Across
  1. 4. recycling
  2. 5. leftover
  3. 8. useless
  4. 10. different
  5. 12. wasting
  6. 13. written
  7. 15. possible
  8. 16. to breathe
  9. 17. garbage can
  10. 18. to distinguish
Down
  1. 1. educated
  2. 2. following
  3. 3. useful
  4. 6. to use
  5. 7. trash
  6. 9. nature
  7. 11. city
  8. 14. to pollute