Ch 14

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Across
  1. 1. lagoon, pond to store manure livestock.
  2. 3. used by rural areas to filter water.
  3. 4. a layer of fairly clear water.
  4. 5. heat pollution to water,
  5. 7. indicates if pathogens are present.
  6. 8. zone, body of water that can support life.
  7. 9. legistlation to protect fish.
  8. 11. a diffuse area that produces pollution.
  9. 13. field, underground pipes of septic tank.
  10. 15. contamination of water by humans.
  11. 16. change in water temperature kills.
  12. 17. human waste.
  13. 19. solid waste from wastewater.
Down
  1. 2. water becomes rich in nutrients.
  2. 4. standard for drinking water.
  3. 6. water produced.
  4. 10. type of pollution from a direct source.
  5. 12. a group of plastics.
  6. 14. the amt of oxygen over time.
  7. 18. safe drinking water by EPA.