Water Pollution Crossword Puzzle Assignment

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Across
  1. 5. oil as it comes out of the ground
  2. 7. most of these countries have laws establishing drinnking water standards
  3. 10. this sewage treatment is a physical process that uses screens and a grit tank to remove large floating objects and allow solids to settle
  4. 11. a.k.a. sludge; 36% of this is used to fertilize farmland, forests, golf courses, and degraded land
  5. 12. each year at least 146 _____-depleted zones form mostly in the world's temperate coastal waters and in landlockes seas
  6. 13. this sewage treatment is a biological process in which aerobic bacteria removes as much as 90% of oxeygen demanding wastes
  7. 14. in areas with suitable soils, sewage from each house can be discharged into a _____ tank with a large drainage field
  8. 15. the largest estuary in the United States
  9. 18. 2012 Stanley Cup champions
  10. 19. the key to reducing this pollution is to prevent it from reaching bodies of surface water
  11. 21. this can react with organic materials in water to form cancer causing chlorinated hydrocarbons
Down
  1. 1. this sewage treatment uses a series of specialized chemical and physical processes to remove specific pollutants left in the water after primary and secondary treatment
  2. 2. studies reveal that in the U.S. bottled water costs 120 times to 7,500 times more than this
  3. 3. swept by the Spurs in the first round of the 2013 NBA playoffs
  4. 4. 2013 NBA western conference pacific division champions
  5. 6. examples include feul oil, gasoline, and other processed petroleum products
  6. 8. dilute, disperse, and degrade large amounts of raw sewage other other degradable pollutants
  7. 9. treatment usually undergoes this to kill viruses and disease-carrying bacteria
  8. 15. New York CIty gets 90% of its water from these mountains
  9. 16. town in California that created 65 hectares of wetlands between the town and the adjacent Humboldt Bay
  10. 17. in 1989, this oil supertanker went off course and released a large amout of oil into Alaska's Prince William Sound
  11. 20. this country had to continue chlorinating its drinking water because of a 1991 cholera outbreak
  12. 21. these areas bear the brunt of our enormous inputs of pollutants and wastes into the ocean