great lakes

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Across
  1. 2. a invasive herring in the lakes
  2. 3. great lake originally called lake Illinois
  3. 6. a city that lies on the shore of lake ontario
  4. 8. a chemical commonly used to kill mosquitoes but it greatly harmed the lakes
  5. 9. a danger to the great lakes where foreign animals enter the food web and mess it up.
  6. 11. great lake with over 1846 islands
  7. 13. a vampire like invasive fish in the great lakes.
  8. 14. a invasive species that can clog pipes in the great lakes
  9. 15. a invasive carp in the great lakes
Down
  1. 1. a danger to the great lakes where animals loose their homes
  2. 4. great lake with 30,000 islands
  3. 5. largest great-lake
  4. 7. a large waterfall that is considered a large tourist attraction
  5. 10. great-lake with over 50% of the fish population
  6. 12. a danger to the great lakes where harmful chemicals enter the habit