Across
- 3. _____ caused an ecological problem in Lake Erie.
- 8. Ways to __ water quality is still studied today.
- 11. The __ that lived here were dying.
- 13. The US and Canada spent money to __ Lake Erie.
- 14. For years, ___ was dumped and washed into the lake.
- 15. Lake _____ is one of the five Great Lakes.
- 16. The __ was in serious trouble.
- 18. Many water sources in the US are still __ because of humans.
- 19. The amount of __ in Lake Erie decreased.
Down
- 1. The pollution ___ the environment.
- 2. The countries put a stop to __ dumping waste.
- 4. __ much algae grew in the lake.
- 5. The countries built better sewage __ plants.
- 6. Many types of __ and animals thrive from the clean lake.
- 7. These lakes ___ between the US and Canada.
- 9. By the 1960's the lake became _____.
- 10. 95% of our nation's __ water is in the Great Lakes.
- 12. The countries managed the use of ___ farming products.
- 14. Lake Erie is not the only body of __ affected by pollution.
- 17. After years of clean-up, the lake is now healthier and __.