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Carbonic acid is a weak acid formed when carbon dioxide dissolves in water |
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Erosion is the process by which earth materials are moved by natural agents like moving water, wind, and ice. |
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| Exfoliation is the peeling of surface layers from exposed bedrock |
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| Landslide is a sudden movement of a mass of bedrock or loose rock down the slope of a hill, a mountain or cliff |
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Mechanical Weathering [image] |
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| Mechanical Weathering is disintegration that takes place when rock is broken into smaller pieces without changing its chemical composition |
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Oxidation is the chemical reaction of oxygen with other substances |
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| Residual Soil is soil thathas the local bedrock as its parent material |
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| Soil Erosion is the removal of valuable topsoil by wind or moving water |
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| Subsoil is the B-horizon of soil that contains clay and iron oxides washed from the topsoil |
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Transported Soil is soil that formed from parent material left by winds, rivers, or glaciers or soil itself was moved from its orginal location |
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Chemical Weathering [image] |
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| Chemical weathering is the breakdown or decomposition of rock that takes place when minerals are changed into different substances |
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| Creep is slow, often invisible, movement of soil down a slope |
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| Hydrolysis is any chemical reaction of water with other substances |
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Ice Wedging is mechanical weathering process in which water freezing in cracks of rocks wedges rocls apart |
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| Mass movement is the downslope movement of large masses of earth materials due to the pull of gravity |
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| Mudflow is the rapid downhill movement of a water-saturated mass of slay and silt |
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| Parent material is rock material from which a soil is formed |
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| Soil is loose, weathered rock and organic material in which plants with roots can grow |
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| Soil profile is a cross section of soil layers above the parent material, usually consisting of the A-, B-, and C-horizons |
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| Topsoil is the A-horizon of soil; contains organic material, or humus, that forms from decayed plant and animal materials |
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| Weathering is the process in which rocks are broken up by the action of water, the atmosphere, and organisms |
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