Why is a dead lake dead?

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10. Can a dead zone recover?

Tags

1. #marine
2. #factors
3. #lakes
4. #bottom
5. #oceans
6. #other
7. #pollution
8. #oxygen
9. #excessive
10. #activities
11. #nutrient
12. #large
13. #coupled
14. #required
15. #caused
16. #areas
17. #world
18. #support
19. #water
20. #hypoxic
21. #human
22. #deplete
23. #zones