Across
- 4. An increase of nutrients in a body of water causes by anthropogenic activities.
- 6. A distinct point/location from which pollution is dircetly released into a body of water
- 9. The process of sewage treatment where oxygen bubbles are made throughout the water where bacteria is eating other bacteria and cleaning out the water
- 11. Acids that are deposited on Earth as rain/snow or as gases and particles that attach onto the surface of things like plants, water, and soil
- 13. A heavy metal compound that occurs naturally in Earth's crust and can dissolve into groundwater. However, it can be removed from water using reverse osmosis, fine membrane filtration, and distillation
- 15. Found in wastewater and are responsible for numerous diseases that can be contracted by humans and other organisms by ingesting or coming into contact with the water
- 16. A naturally occurring heavy metal found in concentrations in water as a result of human activities that is highly toxic to humans. Can also occur through burning coal
- 17. Non-chemical water pollution that occurs when human activities cause a big change in water temperature
- 18. Oil that gets stuck under the surface of the water and it very difficult to remove from the ocean
- 21. A group of harmful chemicals used for rocket fuel
- 23. A group of chemicals that can pose serious health threats to humans as well as other organisms
- 24. Solid waste material from wastewater
- 25. If people are not connected to a city sewer system, they probably have this to treat their wastewater
Down
- 1. The process of sewage treatment in which the large debris settles at the bottom of the tank before the rest of the water keeps moving through the treatment
- 2. A humanmade pond that holds in manure produced from livestock
- 3. An area in a body of water that is experiencing extremely low oxygen concentration which is resulting in the death of organisms
- 5. An area that produces pollution (a subruban city or storm runoff from a parking lot)
- 7. The legislation that sets the standards for safe drinking water
- 8. Rarely found in drinking water but contaminates the water that does come into contact with it (usually after it passes through lead-lined pipes). Can cause damage to the brain, nervous system, and kidneys
- 10. One way to clean up oil from the ocean after an oil spill that uses big sponges called booms to keep the oil from spreading
- 12. A third approach to cleaning up oil is using genetically engineered bacterium.
- 14. Responisble for 60% of oil pollution in the oceans surrounding North America and 45% of oil pollution in oceans worldwide
- 19. Another option for cleaning up the floating oil is to apply chemicals that help to break up and disperse the oil before it hits the shoreline
- 20. a drastic change in the water temperature that can kill organsims
- 22. Low levels show that a water body is less polluted by wastewater. High levels indicate that a water body is highly polluted by wastewater