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level: Level 1

Questions and Answers List

level questions: Level 1

QuestionAnswer
oreteliusnoticed the similarity in the coastline of some continents
alfred wegenerproposed the CDT
pangeasupercontinent
"all earth"meaning of pangea
crackstectonic plates
oceanic crustmore dense, more basalt
continental crustless dense, mostly granite
continental jigsaw puzzle, fossil evidence, rock type evidence and climateevidences of CDT
he couldn't explain why the continents are movingwhy did the CDT get rejected
proposed an explanation to CDT by using SFSharry hess and robert dietz
continentwhich rocks are older, one in the seafloor or one on the continents?
500 yearsthe earth changes polarity every _____
greek for carpentertekton
circulation of heat in the mantleconvection current
convergent boundarydestructive tectonic movement
convergent boundarymountains, volcanoes, trenches, and earthquakes
moving away from each otherdivergent
divergent boundarymountains, volcanoes, trenches and earthquakes
transform boundarydoesn't destroy or create anything
to flowrheo
the branch of physics that studies the deformation and flow of matterrheology
asthenosphere, lithosphere, physical charcteristics and how they respond to stressmechanical definition of the earth's structure
crust, mantle, corechemical definition of the earth's structure
thinnest and outermost layercrust
lithospherecrust and uppermost part of the mantle
mantlethickest layer in the earth
inner coresolid Fe and Ni
outer coremolten Fe and Ni
ability of a solid to flowplasticity
asthenosphereresponsible for plate movement
lower mantlemesosphere
4.5 Billion years oldhow old is the earth?