Chapter 14 review

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Across
  1. 4. An increase of nutrients in a body of water causes by anthropogenic activities.
  2. 6. A distinct point/location from which pollution is dircetly released into a body of water
  3. 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
  4. 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
  5. 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
  6. 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
  7. 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
  8. 17. Non-chemical water pollution that occurs when human activities cause a big change in water temperature
  9. 18. Oil that gets stuck under the surface of the water and it very difficult to remove from the ocean
  10. 21. A group of harmful chemicals used for rocket fuel
  11. 23. A group of chemicals that can pose serious health threats to humans as well as other organisms
  12. 24. Solid waste material from wastewater
  13. 25. If people are not connected to a city sewer system, they probably have this to treat their wastewater
Down
  1. 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. 2. A humanmade pond that holds in manure produced from livestock
  3. 3. An area in a body of water that is experiencing extremely low oxygen concentration which is resulting in the death of organisms
  4. 5. An area that produces pollution (a subruban city or storm runoff from a parking lot)
  5. 7. The legislation that sets the standards for safe drinking water
  6. 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
  7. 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
  8. 12. A third approach to cleaning up oil is using genetically engineered bacterium.
  9. 14. Responisble for 60% of oil pollution in the oceans surrounding North America and 45% of oil pollution in oceans worldwide
  10. 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
  11. 20. a drastic change in the water temperature that can kill organsims
  12. 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