Yaashna B p.5 Great lakes

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Across
  1. 1. agricultural runoff, shoreline development, and industrial pollution, resulting in ______ ____
  2. 4. 22 million pounds of plastic ________ end up in the Great Lakes every year
  3. 7. primarily caused by excessive nutrient runoff,
  4. 8. an animal used to control invasive alewives and create a recreational fishery
  5. 11. Zebra & Quagga Mussels, Sea Lamprey, Round Goby, and Asian Carp
  6. 12. 14th biggest lake in the world
  7. 14. cleans wastewater
  8. 15. Great Lakes _______ ______ are some of the most biologically diverse ecosystems
Down
  1. 2. Contains 10% of the world's freshwater.
  2. 3. Most crucial to human survival
  3. 5. an animal that indicates high water quality
  4. 6. intense, volatile water-level fluctuations
  5. 9. Only lake completely in the U.S
  6. 10. Has over 30,000 islands
  7. 13. leads to nutrient pollution