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plate tectonics

semester exam

TermDefinition
Pangaea all the continents were once part of a supercontinent
continental drift suggested that continents are in constant motion on the surface of earth
mid ocean ridges the mountain ranges in the middle of the ocean
see floor spreading the process by which new oceanic crust forms a long a mid ocean ridge and older oceanic crust moves away from the ridge
plate tectonics earth surface is made of ridge slabs of rocks or plates that move with respect to each other
lithosphere the cold and rigid outermost layer
divergent plat boundary forms where two plates separte
transform Plate boundary forms where two plates slide past each other
convergent plate boundary forms where two plates collide
subduction the denser plate sinks below the more buoyant plat in process
covection the circulation of material caused by differences in temperature and density
Created by: user-2007391
 

 



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