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objbctive

vocab

TermDefinition
continental drift hyothesis that continents are in constant motion
mantle middle layer of the earth situated between the crust above and the core.
pangaea ancient supercontinent, composed of land that forms today's continents.
mid-ocean ridge mountain range located on the seafloor in the middle of the ocean.
seafloor spreading new oceanic crust forms at a mid-ocean ridge as old oceanic crust moves away
convection convection
convergent plat boundary where two plates collide
divergent plate boundary where two plates separate
lithosphere cold, rigid outermost rock layer of earth
plate tectonics theory that earth's surface is made of rock plates that move with respect to each other
subduction sinking of a denser plate below a more buoyant plate at a convergent plate boundary
transform plate boundary where two plates slide by each other
Created by: user-2006816
 

 



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