'Valley bottoms' diaporamas de présentation

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Soils: the substrate upon which many plants depend for water and nutrients

Soils: the substrate upon which many plants depend for water and nutrients. --primary medium to support plants. --also acts as shelter for billions of micro and macro organisms. --bacteria, insects, worms, rodents: all help mix the soil and keep it healthy .

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Potential Energy Surface

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Development of a High-Resolution Global Soil Depth Dataset Jon D. Pelletier Geosciences Dept., University of Arizona

Development of a High-Resolution Global Soil Depth Dataset Jon D. Pelletier Geosciences Dept., University of Arizona .

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