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Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.

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


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Created by: diva626