Water Pollution

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Across
  1. 4. when a dry or wet form of precipitation containing a high amount of acid is collected into earth
  2. 6. the group of harmful chemicals that is used for rocket fuel
  3. 8. material discarded by humans like trash
  4. 9. a part of the septic system that receives the wastewater
  5. 11. the standards for water to be consumed
  6. 12. a specifc source where pollution is coming from
  7. 16. naturally occurring heavy metal found in Earths crust
  8. 18. a banned products used to make plastics
  9. 22. a more general source where pollution is coming from
  10. 23. pollution and water quality control
  11. 24. a spot in water that has a low oxygen concentration and doesn't have much life
  12. 25. most known oil spills from tanker
Down
  1. 1. one species that shows if all of the other species contain dangerous pathogens
  2. 2. heavy metal thatcontaminates water when it lines the pipes
  3. 3. a rapid change in temperature of water that is dangerous for the organisms
  4. 5. a microorganism you may find in human intestines that is commonly used as the indicator for fecal pollution
  5. 7. water pollution caused when humans cause a increase in the temperature of water
  6. 10. high richness of nutrients in a body of water
  7. 13. naturally occurring heavy metal found in water from human activities
  8. 14. pollution from human sewage or from livestock waste
  9. 15. in the middle of a septic tank there is a layer of clear water
  10. 17. a sewage treatment system found in homes
  11. 19. underground pipes part of the septic system
  12. 20. amount of oxygen that is needed by a source of water
  13. 21. the solid waste that is from wastewater