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Unit 8 Vocab Weather
Term | Definition |
---|---|
Weathering | the various mechanical and chemical processes that cause exposed rock to decompose. |
Erosion | the process by which the surface of the earth is worn away by the action of water, glaciers, winds, waves, etc. |
Physical Weathering | any of the various weathering processes that cause physical disintegration of exposed rock without any change in the chemical composition of the rock |
Chemical Weathering | any of the various weathering processes that cause exposed rock to undergo chemical decomposition, changing the chemical and mineralogical composition of the rock |
Frost Action | collective term for several mechanical weathering processes induced by stresses created by the freezing of water into ice. |
Soil | the portion of the earth's surface consisting of disintegrated rock and humus. |
Humus | the dark organic material in soils, produced by the decomposition of vegetable or animal matter and essential to the fertility of the earth. |
Soil Horizon | any of the series of distinctive layers found in a vertical cross section of any well-developed soil. |
Zone of Aeration | This region is called the zone of saturation, and the water it...groundwater. The upper surface of the zone of saturation is called the water table. |
Leaf Litter | material forming a surface-covering layer, in particular. |
Topsoil | the fertile, upper part of the soil. |
Sediments | the matter that settles to the bottom of a liquid; lees; dregs. |
Decomposition | the act or process of decomposing. |
Discharge | to relieve of a charge or load; unload: |
Glacier action | landforms are landforms created by the action of glaciers. |
Suspended soilds | refers to small solid particles which remain in suspension in water as a colloid or due to the motion of the water. It is used as one indicator of water quality. |
Bedrock | unbroken solid rock, overlaid in most places by soil or rock fragments. |
Aquifer | any geological formation containing or conducting ground water, especially one that supplies the water for wells, springs, etc. |
Terrace | a raised level with a vertical or sloping front or sides faced with masonry, turf, or the like, especially one of a series of levels rising one above another. |
Runoff | something that drains or flows off, as rain that flows off from the land in streams. |
Karst Topography | landscape formed from the dissolution of soluble rocks such as limestone, dolomite, and gypsum. |
Watershed | the region or area drained by a river, stream, etc.; drainage area. |