Across
- 4. when a dry or wet form of precipitation containing a high amount of acid is collected into earth
- 6. the group of harmful chemicals that is used for rocket fuel
- 8. material discarded by humans like trash
- 9. a part of the septic system that receives the wastewater
- 11. the standards for water to be consumed
- 12. a specifc source where pollution is coming from
- 16. naturally occurring heavy metal found in Earths crust
- 18. a banned products used to make plastics
- 22. a more general source where pollution is coming from
- 23. pollution and water quality control
- 24. a spot in water that has a low oxygen concentration and doesn't have much life
- 25. most known oil spills from tanker
Down
- 1. one species that shows if all of the other species contain dangerous pathogens
- 2. heavy metal thatcontaminates water when it lines the pipes
- 3. a rapid change in temperature of water that is dangerous for the organisms
- 5. a microorganism you may find in human intestines that is commonly used as the indicator for fecal pollution
- 7. water pollution caused when humans cause a increase in the temperature of water
- 10. high richness of nutrients in a body of water
- 13. naturally occurring heavy metal found in water from human activities
- 14. pollution from human sewage or from livestock waste
- 15. in the middle of a septic tank there is a layer of clear water
- 17. a sewage treatment system found in homes
- 19. underground pipes part of the septic system
- 20. amount of oxygen that is needed by a source of water
- 21. the solid waste that is from wastewater
