Across
- 9. a body of water becomes rich in nutrients is known as
- 10. a large wall built across the ocean to prevent overflow
- 13. extremely low oxygen concentration in a body of water
- 14. large amounts of wastewater are dealt with in a process of cleaning with bacteria
- 15. team change that happens in the chemical, biological, and phycical proporties of the planet
- 16. where pollution is directly produced
- 17. water flowing across the land surface into streams lakes and rivers
- 20. the sold materials that get built up from wastewater
- 21. humans created over time that is now hurting our planet
- 24. an area that produces pollution
- 25. impaired function of the body with a characteristic set of systems
- 26. a large container that carries waste from homes
Down
- 1. carry wastewater from place to place
- 2. manmade body of water handled in large quantities of manure produced by livestock
- 3. water contaminated by human activities
- 4. the prosses of breaking down into small molecules
- 5. disease-causing pathogens are more founded by what when more present
- 6. when there is an increase in fertility in water
- 7. the prosses in filtering something
- 8. a large wall built on the sides of rivers to stop the overflow
- 11. water produced by human activities and operations
- 12. underground pipes that are laid out below the surface of the ground
- 18. the amount of oxygen used over a period of time
- 19. in the middle os a septic tank that's normally clear
- 22. Largepeices turn into what over a period of time
- 23. if you live far from a city you may have this
