1. Pollution 1st lecture

2. Biosphere Environment Habitat

3. Biosphere

4. Environment and Habitat : Environment Habitat

5. What is Pollution ?

6. : ... . ..... ..

7. What is Contamination ?

8. Contamination Pollution Pollution Contamination

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10. Pollution sourcesArtificial Natural Human Volcanoes activities

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13. . D.D.T Biological Magnification

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15. Great Smog of 1952 Smog=SMOKE+FOG

16. Silent Spring

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19. Nagasaki 1945 - Before and after

20. Devil Paul Tibbets KILLED 75,000 PERSONS

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22. Thankswww.draloufi.com

23. www.draloufi.com