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chapter 4 voc

TermDefinition
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