Water Pollution Crossword

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Across
  1. 3. Eutrophication process with too much of a good thing caused by natural causes over centuries
  2. 6. Coliform Bacteria harmless microorganisms that tell if there is there are harmless organisms present
  3. 7. Pollution tiny soil and organic matter in rivers
  4. 9. System sewage treatment system that is made up of a tank and is used in homes
  5. 11. chemicals break up the oil on the surface
  6. 12. wastewater that is a clear liquid
  7. 13. Sources pollution located in specific places
  8. 16. toxic heavy metal occurring from natural processes like burning coal
  9. 17. a particular bacterium consumes oil
  10. 18. Sources pollution located in broad places
  11. 19. field pipes in a septic system that lay below the ground
  12. 20. toxic heavy metal found in pipes
  13. 21. how murky is the water?
  14. 23. heavy metal occurring from human activities like mining
Down
  1. 1. Eutrophication process with too much of a good thing caused by human beings over decades
  2. 2. booms keep the floating oil from spreading
  3. 4. system if people aren't connected to a city sewer system, they probably have this to treat their wastewater
  4. 5. Species this will tell us if disease-causing pathogens are present or absent
  5. 8. Deposition gases that have been deposited on Earth as rain and snow
  6. 9. wastewater that is solid
  7. 10. forever chemicals
  8. 14. harmful chemicals for rocket fuel
  9. 15. Tank tank in a septic system that collects wastewater inside a house
  10. 16. Lagoon blocked off lagoon full of livestock waste
  11. 22. Zone little to no life here and low oxygen levels