Across
- 2. Ex.factory pumps waste into a nearby river
- 5. Ex.Sludge from sewage plants+ Garbage
- 7. Ex. Particles of sand, silt, and clay
- 9. Ex. waste from an entire farming community
- 10. Standard for water to classify as "safe", 77 elements
- 12. Combination of pipes and lawn carrying septage
- 13. Focus on chemical properties of surface H2O
- 16. Amount of oxygen consumed over a period of time
- 17. Sulfuric + nitric acid returns to earth
- 18. Used in rural areas to treat sewage
- 21. Ex. Fecal coliform bacteria
- 22. Massively polluted river in Brazil now cleaner
- 23. Where thousands of animals waste is kept
- 24. Uses evaporation to reduce water temp.
Down
- 1. Result of dramatic change in temperature
- 3. Interferes with dolphin communication
- 4. Causes an algal bloom
- 6. Nonchemical water pollution, temperature
- 8. An indicator of water quality
- 11. Harmful chemicals used to fuel rockets
- 13. Used to contain oil spills
- 14. 1948, first legislation for water quality
- 15. Largest oil spill via tanker
- 19. Lethal compounds, used to create plastic
- 20. National standards for drinking H2O