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Ecological Problems

Ecological Problems. Biological Magnification. Increase or concentration of a substance, such as the pesticide DDT, in a food chain. OZONE DEPLETION. CFC’s are commonly used as: Refrigerants Styrofoams Solvents Aerosols. OZONE DEPLETION. Ozone protects the earth from harmful UVB rays.

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Ecological Problems

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  1. Ecological Problems

  2. Biological Magnification Increase or concentration of a substance, such as the pesticide DDT, in a food chain.

  3. OZONE DEPLETION • CFC’s are commonly used as: • Refrigerants • Styrofoams • Solvents • Aerosols

  4. OZONE DEPLETION • Ozone protects the earth from harmful UVB rays. • It has been thinning over Antarctica.

  5. OZONEO3 • UV rays split Oxygen that add to O2 to make O3

  6. Ozone = 03 CFC = CCl4 OZONE DEPLETION Cl breaks off an oxygen from ozone

  7. Why McDonalds changed to paper containers.

  8. Should the School Use Styrofoam Lunch Trays?

  9. Ozone Depletion Kills Krill (baleen whale food source) Krill is a zooplankton

  10. Reports show an 80% drop in the Population of zooplanction off the coast of southern California. • Krill are dramatically affected by UVB rays.

  11. Glacier Melting • State of the Arctic on Vimeo

  12. GLOBAL WARMING: SEA LEVELS RISE • Reuters AlertNet - VIDEO: Rising seas threaten the Maldives

  13. DEFORESTATION • Loss of Forests REPLANT

  14. “Slash and Burn”

  15. Erosion is More Likely with Deforestation

  16. ACID RAIN

  17. pH of Acid Rain • The pH of "normal" rain has traditionally been given a value of 5.6. • However scientists now believe that the pH of rain may vary from 5.6 to a low of 4.5 with the average value of 5.0.

  18. EXTINCTION • End of a species

  19. INVASIVE SPECIES • Non-native (or alien) to the ecosystem Kudzu from Japan to stop erosion Garden purple loosestrife is taking over wetlands

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