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A "plate" as used in the theory of Plate Tectonics is a _____ of the lithosphere.
Piece
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According to the theory of plate tectonics, plates constantly _____ relative to each other.
move
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Plates move beacuse they _____ on the moving _____.
float, asthenosphere
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The two types of plate are _____ and _____.
continental, oceanic
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Plate motion was first observed in _____ drift.
continental
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We can prove that continents drift by showng that they _____ like pieces of a jigsaw puzzle, and by showing that _____, _____, _____ match when the continents are fitted to form a super continent.
fit, fossil sites, rocks, climate zones
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Because oceans form by _____ motion of continents, ocean basins are _____ than continents.
divergent, younger
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The _____ valley is a proof that the seafloor spreads.
rift
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The age of the seafloor rocks _____ as the distance from the MOR increases.
increases
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_____ indicate that the plates are moving even today.
earthquakes
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Plate tectonics is an important theory beacuse it explains the distribution of _____, _____, and _____.
oceans, continents, earthquakes
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The three types of plate motions, therefore boundaries are _____, _____, and _____.
divergent, convergent, transform
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Seafloor forms at _____boundaries, and is destroyed along _____ boundaries at _____.
divergent, convergent, trenches
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Plates are conserved at _____ boundaries, a good example for this is the _____ fault.
transform, San Andreas
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The energy for late motion comes from _____/
internal heat
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If two oceanic converge, the _____, _____, _____ plate will undergo subduction.
denser, cooler, older
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Plate motion is from _____ to _____ volcanoes that were produced by a stationary hotspot.
young, old
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Marine magnetic anomalies are _____ about the MOR proving that oceanic plates form at and spread from _____.
symmetric, MOR
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Along what features would you expect to find the deepest earthquakes?
subduction zones
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What plate boundary would have only shallow earthquakes?
divergent
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What specific type of plate boundary would have a fold mountain range.
continental - continental
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What specific type of plate boundary would have volcanic mountain ranges.
continental - oceanic
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How would you recognize a series of volcanoes formed due to a hotspot?
The volcanoes form a straight line
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What plate motion would "close" an ocean?
convergent
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How would you recognize a series of volcanoes formed due to subduction?
The volcanoes form a curved line
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