water pollution

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Across
  1. 2. water turns into a different color when there is an overgrowth of algae
  2. 3. a place that holds waste from livestock
  3. 5. a heavy metal that is very toxic to organisms
  4. 8. a type of bacteria that can cause disease
  5. 11. a system that is is small and simple, used for homes in rural areas
  6. 12. a place where there is no life or oxygen
  7. 15. when a body of water has an increase in fertility
  8. 16. a bacteria found in lower intestines of warmblooded organisms
  9. 17. when humans contaminant a body of water
  10. 18. a type of pollution that occurs when there is a big change in water temp.
  11. 19. the layer of clear water in the middle of a septic tank
  12. 21. waste in solid form from wastewater
  13. 22. a diffuse area the makes pollution
  14. 25. the largest oil spill
Down
  1. 1. a liquid produced by humans and livestock from sewage from toilets and gray water.
  2. 4. when a toxic substance is polluted into the ocean
  3. 6. one of the largest environmental disasters in U.S. history that happened in Alaska
  4. 7. the heavy metal that can dissolve into ground water
  5. 9. the section where the wastewater from a house goes to
  6. 10. a part of the septic system, consisted of underground pipes
  7. 13. an area from where pollution is produced
  8. 14. a harmful algal bloom
  9. 20. A certain area becomes rich in nutrients
  10. 23. the heavy metal that releases from the burning of coal
  11. 24. a system using technology to navigate and measure distances underwater