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Weathering and Soil

QuestionAnswer
uniformitarianism The geologic principle that has the same geologic processes that operate today operated in the past to change Earths surface.
erosion The process by which water, wind, or gravity moves weathered partials of rock and Soil.
weathering the chemical and physical processes that break down rock and other substances.
mechanical weathering The type of weathering in which rock is physically broken into smaller pieces.
chemical weathering The process that breaks down rock through chemical changes.
abrasion The grinding away of rock by other rock particles carried in water, ice, or wind.
frost wedging Process that splits rock when water seeps into cracks, then freezes and expands.
oxidation A chemical change in which a substance combines with oxygen, as when iron oxidizes, forming rust.
permeable Characteristics of material that contains connected air spaces, or pores, that water can seep through easily.
soil The loose, weathered material on earths surface in which plants can grow.
bedrock Rock that can make up Earth's crust also the solid rock layer beneath the soil.
humus
fertility
loam
pH scale
soil horizon
topsoil
subsoil
decomposer
natural resource
soil conservation
crop rotation
contour plowing
conservation plowing
Created by: MaddieKinney
 

 



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