Water Pollution Project

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Across
  1. 5. d
  2. 6. f
  3. 9. n
  4. 10. w
  5. 13. e
  6. 14. p
  7. 15. s
Down
  1. 1. d o
  2. 2. r
  3. 3. h w
  4. 4. passage ways that transport dirty water
  5. 7. a b
  6. 8. any change in water quality that can harm
  7. 11. w
  8. 12. o