chapter 4 voc
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| core | a central and often foundational
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| mantle | The mantle is the layer located directly under the sima
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| magma | molten rock material within the earth from which igneous rock results by cooling
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| 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
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| continental drift | the very slow movement of the continents on the surface of the Earth
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| rift valleys | a long, steep valley formed when two parallel rifts form in the Earth's crust and the land between them sinks
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| abyssal plains | any of the great flat sediment-covered areas of ocean floor
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| continental shelves | the part of a continent that lies under the ocean and slopes down to the ocean floor
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| trench | a long, narrow hole in the ocean floor
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| folds | an enclosure for sheep
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| 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
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| 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
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| sediment | material (such as stones and sand) that is carried into water by water, wind, etc.
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| 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
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| glaciers | a very large area of ice that moves slowly down a slope or valley or over a wide area of land
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| plateu | a large flat area of land that is higher than other areas of land that surround it
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| 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
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| 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
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| desalinization | to remove salt from (something, such as water)
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| 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
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| headwaters | the source of a stream —usually used in plural
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| tributary | paying tribute to another to acknowledge submission, to obtain protection, or to purchase peace
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| watershed | the area of land where all of the water that is under it or drains off of it goes into the same place.
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| drainage basin | an area through which rivers or water sources flow in a given location.
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| estuaries |
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| wetlands |
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| groundwater |
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| water table |
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| humus |
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| leaching |
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| contour plowing |
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| soil exhaustion |
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| crop rotation |
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| irrigation |
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| soil salinization |
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| deforestion |
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| reforestation |
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| raiin acid |
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| aqueducts |
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| aquifers |
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| fossil water |
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| ore |
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| fossil fuels |
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| petrochemiacls |
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| hydroelectric power |
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| geothermal energy |
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