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Dynamic Earth 5

lesson 5

TermDefinition
soil a loose mixture small rock fragments organic matter water and air that can support the growth of vegtation
humus decayed organic matter
soil profile a vertical section of soil that shows all of the different layers
soil horizon each layer in the soil that shows the physical properties
microorganism a microscopic organism usually a bacterium virus or fungus
decomposer an organism that decomposes organic material
leaching when water carries materials into the lower layers of soil
soil texture describes the relative amounts differently sized soil particles
Created by: rippert
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