Across
- 2. The solid waste material found in wastewater
- 4. Chemicals used for rocket fuel
- 6. Pollution caused by human activities, changing the water temperature
- 8. A part of a body of water with little oxygen and life
- 11. a somewhat small sewage treatment system
- 13. Layer of water in the middle of a septic tank
- 16. Safe drinking water standard established by the EPA
- 18. Water that comes from activities like human sewage
- 19. A pond with rubber made by humans to deal with large amounts of manure
- 21. The part of the septic system containing underground pipes
- 22. The contamination of the environment caused by large amounts of oil, often in bodies of water
- 23. How much oxygen water uses at specific temperatures over an amount of time
- 24. An event causing a body of water to become nutrient rich
- 25. A specific place where pollution is produced
Down
- 1. Microorganisms found in human intestines that can be used as an indicator species
- 3. Species that reveal if disease-causing pathogens are present
- 5. Acidic pollutants depositing on Earth's surface from precipitation or gases
- 7. Legislation protecting wildlife and recreation in and on water by keeping the water clean
- 9. Bodies of water being contaminated by human activities
- 10. Industrial compounds that are used to make plastics
- 12. Organisms can be killed by this big change in water temperature
- 14. Legislation creating standards for drinking water
- 15. Container used for wastewater in the Septic system
- 17. A widespread area where pollution is being produced
- 20. Anthropogenic inputs of nutrients in a body of water, leading to a rise in fertility
