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chapter 4 voc
| Term | Definition |
|---|---|
| core | a central and often foundational |
| mantle | The mantle is the layer located directly under the sima |
| magma | molten rock material within the earth from which igneous rock results by cooling |
| plate techtonics | a theory in geology: the lithosphere of the earth is divided into a small number of plates which float on and travel independently over the mantle and much of the earth's seismic activity occurs at the boundaries of these plates |
| continental drift | the very slow movement of the continents on the surface of the Earth |
| rift valleys | a long, steep valley formed when two parallel rifts form in the Earth's crust and the land between them sinks |
| abyssal plains | any of the great flat sediment-covered areas of ocean floor |
| continental shelves | the part of a continent that lies under the ocean and slopes down to the ocean floor |
| trench | a long, narrow hole in the ocean floor |
| folds | an enclosure for sheep |
| faults | a fracture in the crust of a planet (as the earth) or moon accompanied by a displacement of one side of the fracture with respect to the other usually in a direction parallel to the fracture |
| weathering | the action of the weather conditions in altering the color, texture, composition, or form of exposed objects; specifically : the physical disintegration and chemical decomposition of earth materials at or near the earth's surface |
| sediment | material (such as stones and sand) that is carried into water by water, wind, etc. |
| erosion | the gradual destruction of something by natural forces (such as water, wind, or ice) : the process by which something is eroded or worn away |
| glaciers | a very large area of ice that moves slowly down a slope or valley or over a wide area of land |
| plateu | a large flat area of land that is higher than other areas of land that surround it |
| alluvial fan | the alluvial deposit of a stream where it issues from a gorge upon a plain or of a tributary stream at its junction with the main stream |
| delta | a piece of land shaped like a triangle that is formed when a river splits into smaller rivers before it flows into an ocean |
| desalinization | to remove salt from (something, such as water) |
| hydrologic cycle | the sequence of conditions through which water passes from vapor in the atmosphere through precipitation upon land or water surfaces and ultimately back into the atmosphere as a result of evaporation and transpiration —called also hydrological cycle |
| headwaters | the source of a stream —usually used in plural |
| tributary | paying tribute to another to acknowledge submission, to obtain protection, or to purchase peace |
| watershed | the area of land where all of the water that is under it or drains off of it goes into the same place. |
| drainage basin | an area through which rivers or water sources flow in a given location. |
| estuaries | |
| wetlands | |
| groundwater | |
| water table | |
| humus | |
| leaching | |
| contour plowing | |
| soil exhaustion | |
| crop rotation | |
| irrigation | |
| soil salinization | |
| deforestion | |
| reforestation | |
| raiin acid | |
| aqueducts | |
| aquifers | |
| fossil water | |
| ore | |
| fossil fuels | |
| petrochemiacls | |
| hydroelectric power | |
| geothermal energy |
Created by:
virgcervante
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