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Weathering & Erosion
| Question | Answer |
|---|---|
| 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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