Water Pollution

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Across
  1. 3. A species that shows whether a disease are present
  2. 4. A increase in the algal population in a waterway
  3. 6. Dirty water produced by human and animal sewage
  4. 10. An illness causing bacterium
  5. 11. A big container that collects wastewater from a home
  6. 12. A group of harmless microorganisms that serve as an indicator for harmful microorganisms
  7. 13. A naturally occuring heavy metal that is
  8. 16. A location where pollution is directly produced
  9. 19. A scattered area that produces pollution
  10. 22. A naturally occuring compund that dissolves in water
  11. 23. A legislation that cleans the water of pollutants
  12. 25. Contamination of body of water, by human activities
  13. 26. A body of water tat becomes rich with lots of nutrients
Down
  1. 1. Human made pond lined with rubber that handles large amounts of livestock
  2. 2. A legislation that set a maximum amount of water pollutants in drinking water
  3. 5. A component of a septic system made of underground pipes
  4. 7. A heavy metal that contaminates water
  5. 8. A body of water with low oxygen concentration and no life
  6. 9. A layer of clear water found in the septic tank
  7. 14. A solid waste material collected from wastewater
  8. 15. The quanity of oxygen water uses
  9. 17. A small sewage treatment system for homes
  10. 18. A group of harmless microorganisms
  11. 20. A big change in water temperature that can kill species
  12. 21. live in human intestines
  13. 24. result of burning fossil fuels