Unit 8 Crossword

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Across
  1. 1. Dangerous
  2. 3. Versatile
  3. 4. Diverse
  4. 8. Flip-flop
  5. 10. Dirty
  6. 11. Treatment
  7. 14. Contagious
  8. 18. Up-and-coming
  9. 19. Grass
  10. 21. Cancer-causing
  11. 22. Farming
  12. 23. Chemicals
  13. 24. Environment
  14. 25. Concentration
Down
  1. 2. Runoff
  2. 5. Hazardous mineral fiber
  3. 6. Toxic buildup
  4. 7. Algae
  5. 9. Germs
  6. 12. Pollution
  7. 13. Birth-defect causing
  8. 15. Salty
  9. 16. windbreak
  10. 17. Toxic
  11. 20. Brain-damaging