Across
- 5. when a body of water is full of nutrients
- 7. the Alaskan oil ship that had a massive spill in 1989
- 9. ___ pollution, hurts your ears
- 13. human-made lagoon used to handle manure
- 15. The contamination of streams, rivers, lakes, or oceans with litter or human substances
- 16. ___ treatment, first process of sewage treatment plant, solids sink down to bottom
- 17. a component of a septic system, made of underground pipes
- 18. the act in 1972 created for more clean water
- 20. ___ treatment , second process, bacteria break down organic material
- 21. a layer of clear water found in the middle of the septic tank
- 22. solid waste material from wastewater is called:
- 23. large container that receives waste water, commonly found in remote places under homes
- 24. a species that indicates whether or not disease pathogens are present
Down
- 1. ___Source which is a diffuse area that produces pollution
- 2. ___Source which is a distinct point where pollution is directly produced
- 3. These three letters stand for the amount of oxygen a quantity of water uses over a period of time
- 4. the chapter on which you're taking the test
- 6. is produced by livestock, human activities, and sewage, and has to do with water
- 8. area or commonly lakes without life and little oxygen concentration
- 10. the best teacher on campus
- 11. basically vitamins found in foods needed for everyday life of organisms
- 12. the class you're taking right now!
- 14. the three heavy metals are arsenic, mercury, and ___
- 19. acids deposited on earth as rain or snow or as gases and particles
- 20. small sewage treatment system made up of a septic tank
- 25. when fresh water meets the ocean in form of a stream or lake