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objective 9

vocab

TermDefinition
continental drift hypothesis that continents are in constant motion
mantle middle layer of earth situted between the crust above and the core below
pangaea ancient supercontineet composed of land that forms todays continents
mid ocean ridge mountain range located on the seafloor in the middle of the oceon
seafloor spreading new oceanicc crust forms at a mid ocean ridges as old oceanic crust moves away
convection circulation of material caused by differences in temperatures and density
convergent plate boundary s where two plates collide
lithosphere cold,ridge 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 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-2006893
 

 



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