notes
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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| geology | study of earth's physical structures
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| 4 important zones | inner core, outer core, mantle, crust
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| inner core | solid, temps and pressure is very high
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| outer core | mostly dense liquid metal( iron and nickel ) temps and pressures are very high
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| mantle | most of earth's mass
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| crust | uppermost layer, 25 miles thick, thin compared to the rest of earth's interior
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| plate tectonics | theory that explains how forces within the planets create landforms
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| name the diff. ways the plates can move | apart, collide, or laterally
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| spreading plates can create... | oceanic ridges undersea( Mid atlantic ridge ) and rift valleys on land( the Great rift valley in Africa )
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| colliding plates can create... | trenches and volcanoes undersea and mountains on land( Himalaya mountains )
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| plates that move laterally can create... | fractures and earthquakes
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| weathering | slow and hard to detect. includes chemical and physical processes
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| erosion | movement of surface material by water, wind, and ice
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| tectonic processes | landforms such as mnts and some valleys are created by volcanoes, folding, and faulting.
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| erosion | this landform is made up of rock and has a thin layer of sediment or soil on the surface, reflect the hardness of underlying rock. ( plateau )
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| sediment deposited by ice, wind, or water | sand dunes or floodplains and an alluvial fan and a delta are also good examples of this this type of landform
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| __________,____________, and ____________ of landforms have influenced human settlement and transportation throughout history. | location, shape, and size
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| saltwater makes up... | 97% of the world's water and is too salty for most uses
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| freshwater makes up... | less than 3% of the world's water, most is frozen in ice caps
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| less than 1% of freshwater is.. | in vapor and liquid form
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| liquid freshwater can found in two places | surface water and ground water
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| surface water is... | in headwaters, tributaries, rivers, lakes, estuairies, and wetlands
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| ground water is.. | stored in soil and water tables
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| describe the hydrologic cycle | powered by solar energy, winds, and gravity. evaporation, condensation, precipitation, then it starts all over again
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| flooding occurs when... | rivers contain more water than they can hold, heavy rain, snow melts, and human activities, such as clearing vegetation to pave roads
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| effects of flooding | erosion, loss of vegetation, drowns both people and livestock, die of diseases
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Created by:
diva626
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