Water Pollution

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Across
  1. 4. A distinct location where pollution starts
  2. 5. Phenomenon for water rich in nutrients
  3. 9. Amount of oxygen water uses
  4. 12. a dramatic change in water
  5. 14. This can enter water bodies 2 different ways
  6. 18. Ex:soil particles carried downstream
  7. 20. Very little life in this area of water
  8. 21. Increase in water fertility
  9. 23. a layer of fairly cleared water
  10. 24. This water can come from human sewage
  11. 25. receives wastewater in a septic system
Down
  1. 1. the standard for safe drinking water
  2. 2. Highly toxic to organisms
  3. 3. Used in homes to treat sewage
  4. 6. projects water bodies
  5. 7. harmless microorganisms
  6. 8. Changes water temperature
  7. 10. species that indicates environment
  8. 11. protects sources of water
  9. 13. human-made pond to handle manure
  10. 15. Ex:Garbage and sludge
  11. 16. Ex:oil, pet waste, pesticide, herbicide
  12. 17. Acids deposited on Earth as rain
  13. 19. a group of harmful chemicals
  14. 22. Pies found in a septic system