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Weathering & Erosion

QuestionAnswer
Weathering wear away or change the appearance or texture of (something) by long exposure to the air.
Erosion the process of eroding or being eroded by wind, water, or other natural agents.
Physical Weathering is caused by the effects of changing temperature on rocks, causing the rock to break apart. The process is sometimes assisted by water.
Chemical Weatherinng the erosion or disintegration of rocks, building materials, etc., caused by chemical reactions (chiefly with water and substances dissolved in it) rather than by mechanical processes.
Frost Action effective form of mechanical weathering. When water trickles down into fractures and pores of rock, then freezes, its volume increases by almost 10 percent.
Soil the upper layer of earth in which plants grow, a black or dark brown material typically consisting of a mixture of organic remains, clay, and rock particles
Humus the organic component of soil, formed by the decomposition of leaves and other plant material by soil microorganisms.
Soil Horizon is a layer generally parallel to the soil crust, whose physical characteristics differ from the layers above and beneath
Zone of Aeration the zone between the land surface and the water table in which the pore spaces between soil and rock particles contain water, air, and/or other gases.
Leaf Litter decomposing but recognizable leaves and other debris forming a layer on top of the soil, especially in forests.
Topsoil the top layer of soil.
Sediments matter that settles to the bottom of a liquid; dregs.
Deposition the action of depositing something.
Discharge allow (a liquid, gas, or other substance) to flow out from where it has been confined.
Glacier action ice, such as erosion, transportation, and deposition. The term sometimes includes the action of meltwater streams derived from the ice
Suspended solids 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 solid rock underlying loose deposits such as soil or alluvium.
Aquifer a body of permeable rock that can contain or transmit groundwater.
Terrace make or form (sloping land) into a number of level flat areas resembling a series of steps.
Runoff the draining away of water (or substances carried in it) from the surface of an area of land, a building or structure, etc.
Karst Topography is a landscape formed from the dissolution of soluble rocks such as limestone, dolomite, and gypsum. It is characterized by underground drainage systems with sinkholes and caves.
Watershed an area or ridge of land that separates waters flowing to different rivers, basins, or seas.
Created by: MayaSTX
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