Laureen S. Kelly, Ph.D.
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Pedology
Slideshow lecture on soil genesis/formation and classification.
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More on Matter: Ions, Molecules, and Chemical Bonding
Slideshow on Matter: Lecture #2 (of 2).
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Matter
Slideshow lecture on Matter. Lecture #1 (of 2).
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Deforestation in Amazonia
Slideshow images of deforestation in the Amazon rainforest.
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Biological Soil Crusts
Slideshow briefly highlights biological soil crust formation and importance.