Across
- 3. Eutrophication process with too much of a good thing caused by natural causes over centuries
- 6. Coliform Bacteria harmless microorganisms that tell if there is there are harmless organisms present
- 7. Pollution tiny soil and organic matter in rivers
- 9. System sewage treatment system that is made up of a tank and is used in homes
- 11. chemicals break up the oil on the surface
- 12. wastewater that is a clear liquid
- 13. Sources pollution located in specific places
- 16. toxic heavy metal occurring from natural processes like burning coal
- 17. a particular bacterium consumes oil
- 18. Sources pollution located in broad places
- 19. field pipes in a septic system that lay below the ground
- 20. toxic heavy metal found in pipes
- 21. how murky is the water?
- 23. heavy metal occurring from human activities like mining
Down
- 1. Eutrophication process with too much of a good thing caused by human beings over decades
- 2. booms keep the floating oil from spreading
- 4. system if people aren't connected to a city sewer system, they probably have this to treat their wastewater
- 5. Species this will tell us if disease-causing pathogens are present or absent
- 8. Deposition gases that have been deposited on Earth as rain and snow
- 9. wastewater that is solid
- 10. forever chemicals
- 14. harmful chemicals for rocket fuel
- 15. Tank tank in a septic system that collects wastewater inside a house
- 16. Lagoon blocked off lagoon full of livestock waste
- 22. Zone little to no life here and low oxygen levels
