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a weak acid known only in solution; formed when carbon dioxide combines with water |
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Chemical Weathering [image] |
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Chemical weathering is the process by which rocks are decomposed, dissolved or loosened by chemical processes to form residual materials. |
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| the tendency of a solid material to slowly move or deform permanently under the influence of stresses (deformation) |
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| The wearing away of the earth's surface by any natural process. The chief agent of erosion is running water; minor agents are glaciers, the wind,and waves breaking against the coast. |
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| The scaling off of a bone, a rock, or a mineral, etc.; the state of being exfoliated. |
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| A chemical process involving the addition of the elements of water. |
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| When water infiltrates fractures in rock and freezes, the force of expansion is great enough to break the rock into smaller pieces. |
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| A slide of a large mass of dirt and rock down a mountain or cliff. |
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| Mass movement is the down slope movement of earth materials under the influence of gravity. |
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Mechanical Weathering [image] |
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| Mechanical weathering takes place when rocks are broken down without any change in the chemical nature of the rocks. |
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| It is a rapid movement of a large mass of mud formed from loose earth and water. |
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| the process of oxidizing; the addition of oxygen to a compound with a loss of electrons; always occurs accompanied by reduction |
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| the underlying geological material (generally bedrock or a superficial or drift deposit) in which soil horizons form. |
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| The soil that is remaining after the soluble elements have been dissolved |
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| Soil is the naturally occurring, unconsolidated or loose covering on the Earth's surface. |
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| The washing away of soil. |
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| a vertical section of soil from the ground surface to the parent rock |
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| Subsoil (also called substrata) is the layer of soil under the topsoil on the surface of the ground. The subsoil may include substances such as clay and has only been partially broken down by air, sunlight, water etc., to produce true soil. |
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| Topsoil is the upper, outermost layer of soil, usually the top 2 to 8 inches. It has the highest concentration of organic matter and microorganisms and is where most of the Earth's biological soil activity occurs. |
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| If the soil forms from material that was transported to the location by erosion, it is transported soil. |
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| Weathering is the decomposition of earth rocks, soil and their minerals through direct contact with the planet's atmosphere. |
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