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ocean t chart

t chart comparing oceanic and continental landforms

QuestionAnswer
oceanic landforms..continental landforms..both oc:crust 6-11 kl thick.....crust made of basalt..co:crust over 70 kl thick..crust made of granite..bo:various landforms on them..affected bt constructive and destructive forces..made of rock
plain..abyssal plain..both pl:contains more hills than abyssal plain..ab:flatter than those on land because of deposition..bo:mainly smooth..constantly changing because of erosion and weathering..wide flat areas of land
valleys..rift..both va:formed by erosion..very narrow..some formed by glaciers eroding..ri:formed when two plates spread apart..low wide areas..magma rises and forms new land..bo:low land between hills or mountains
seamounts..volcanoes..both se:can sometimes have a flattened top..much taller than volcanoe because under water..erupt less frequently..vo:more pointed top..formed where plates collide..erupt more frequently..bo:high in elevation..constructive and destructive..lava can come out
mountains..mid ocean ridge..both mo:very tall..formed when 2 plates collide..surrounded by valleys..over time become smaller..mi:surrounded by ridges..lava comes up..bo:land which rises high above ground..form when plates collide..rocky surfaces
canyon..trench..both ca:elevation higher than trench..formed by erosion..cna be 1,561 meters deep..tr:much deepre than canyons..formed when one plate slides under another..can be 11,000 meters deep..bo:deep valley with low steep sides
Created by: 1tennisstar
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