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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 ridge The mountains ranges in the middle of the oceans
seafloor spreading the process by which new oceanic crust forms along a mid ocean ridge and older oceanic crust moves away from the ridge earths surface is made of ridge slab of rocks or plates that move with respect to each other
plate tectonics earths surface is made of ridge slab of rocks or plates that move with respect to each other
lithosphere the cold outermost layer
divergent plate boundary forms where two plates separate
transform plate boundary forms where two plates slide past each other
convergent plate boundary forms where two plates collide
subduction the denser plate sink below the more buoyant plate in a process
convection the circulation of material caused by differences in temperature and density.
Created by: user-2007381
 

 



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