1. Do First: Go ahead…uka do it.

2. Human Dependence  We depend on the ocean for: 1. Weather The oceans absorb a lot of energy from the sun. Warmer water = more evaporation = more rain Cooler water = less evaporation = less rain

3. Human Dependence We depend on the ocean for: 2. Food Seafood provides a lot of world’s protein. 3. Transportation most of the worlds goods are transported by ship 4. Recreation Many countries main source of income is through ocean tourism

4. Human Modification 1. Over-fishing Disrupts the food web May cause organisms to migrate to other areas

5. Human Modification 2. Artificial Reefs human-made underwater structure, typically built for the purpose of promoting marine life http://www.youtu be.com/watch?v =Q97IAUHICjo

6. Human Modification  3.Pollution: Runoff  When draining water carries things with it (like dirt and pollution)

7. Source of Runoff…  1. Large Urban Areas  Explanation: Made mostly of concrete  Example: Storm drains

8. Source of Runoff…Farms  Pesticides and fertilizer wash off of fields into water

9. CFU

10. The Dead Zone

11. The Problem

12. Part I: Mississippi Watershed Watershed: An area where all of the water drains out of the same place

13. Part II: The “Dead Zone”

14. Part III: What Causes The “Dead Zone”

15. THE DEAD ZONE  VIDEO VIDEO

16. The Answer  http://www.youtube.com/watch?v=Ul45h J0ltCY http://www.youtube.com/watch?v=Ul45h J0ltCY