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Plate Tectonics


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Category: Term

 
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Created by: gilkey
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mesosphereMeaning: the strong, lower part of the mantle between the asthenosphere and the outer core11false
outer coreMeaning: the liquid layer of the Earth's core that lies beneath the mantle and surrounds the inner core21false
coolerprocess by which hot material from deep within the Earth rises while _____ material near the surface sinks30true
transform boundaryMeaning: when two tectonic plates move away from each other this is the boundary they create between them41false
PangaeaMeaning: all the Earth's land masses joined together were once called this51false
crustMeaning: The thin, outermost layer of the Earth, or the uppermost part of the lithosphere61false
sea-floor spreadingMeaning: as tectonic plates move away from each other, the sea floor spreads apart and magma rises to fill in the gap81false
continental driftMeaning: the theory that continents can drift apart from one another and have done so in the past91false
lithosphereMeaning: the outermost, rigid layer of the Earth that consists of the crust and the rigid upper part of the mantle101false
inner coreMeaning: soild, dense ball of iron111false
aroundthe theory that the Earth's lithosphere is divided into tectonic plates that move _____ on top of the asthenosphere120true
asthenosphereMeaning: the soft layer of the mantle on which pieces of the lithosphere move131true
convergent boundaryMeaning: when two tectonic plates push into one another, this is the boundary where they meet141false