Author Stre

United States

Joined: 03/05/2009

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Author Stre's PowerPoint Presentations

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GECA uploaded a new presentation "solar_system"

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GECA uploaded a new presentation "Young_and_Hot_Big bang"

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GECA uploaded a new presentation "rockcyc_mineral"

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GECA uploaded a new presentation "Weather Forecasting and Air masses-1"

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GECA uploaded a new presentation "Plate Tectonics - earth"

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GECA uploaded a new presentation "galaxyedit"

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GECA uploaded a new presentation "LIfe of a Star"

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GECA uploaded a new presentation "Ocean_Circulation"

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GECA uploaded a new presentation "Geological Time"

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GECA uploaded a new presentation "Global Warming"

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