Plate Tectonics
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| the correct order of the four major layers of the Earth, from the innermost to outermost | show 🗑
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| show | iron.
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| show | -The velocity of seismic waves varies with the density of the material.
-S-waves cannot pass through the liquid outer core.
-Data from seismic waves can be used to produce three-dimensional tomographs.
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| Oceanic crustal rock is best described as: | show 🗑
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| statements about the lithosphere | show 🗑
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| The principle explaining the variable bouyancy of crustal material is | show 🗑
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| early theorys about the "fit" of the continents across the Atlantic Ocean | show 🗑
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| show | -Gondwanaland, southern continents
-Laurasia, northern continents
-Pangaea, super continent
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| describe mid-ocean rises | show 🗑
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| show | -earthquakes landward of subduction zones
-variability of heat flow through the ocean crust
-mirror images of polarity reversals on each side of mid-ocean ridges
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| show | -temperature probes on the ocean floor
-radiometric dating of seafloor rocks
-recording the magnetic polarity of minerals in the crust
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| Of the following statements about the Earth's plates, which is correct? | show 🗑
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| show | A) divergent zones
B) grabens
C) mid-ocean ridges
This is the correct answer.
D) subduction
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| show | This is the correct answer.
A) basaltic volcanism and rifting
B) andesitic volcanism
C) crumpled and fractured continental rocks
D) volcanic island arc chains
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| show | wide, seismically quiet coastal zones
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| statements about hot spots | show 🗑
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| describe the history of the continents. | show 🗑
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| Remnants of small crustal fragments that are accreted to larger crusts are termed: | show 🗑
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| show | -Hydrothermal vent activity is known to occur at seafloor spreading centers.
-Vents occur over some of the thickest portions of oceanic crust.
-Minerals may precipitate rapidly out of super heated plumes of water.
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| Which of the following statements accurately describes vent communities? | show 🗑
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| show | -The density of the Earth is greater than the density of the surface rocks on Earth.
-The Earth's magnetic field indicates that the center must be composed of magnetic material.
-The composition of some meteorites, which are believed to be of the same m
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| show | A chemical boundary between the crust and mantle.
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| Where is measured heat flow greatest along the oceanic crust? | show 🗑
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| true about earthquakes | show 🗑
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| Which is an example of an active continental rift? | show 🗑
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| show | Old oceanic crust
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| The Philippines are the result of what type of plate boundary? | show 🗑
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Created by:
kwhite6448