Plate Tectonics Review Question Preview (ID: 39897)


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The densest layers of the Earth are located where?
a) Inner core
b) Outer core
c) Lower mantle
d) Crust

Who came up with the idea of continental drift?
a) Wissman
b) Wilson
c) Wegener
d) Hess

The idea that the continents were once joined together then moved apart is called...
a) Seafloor spreading
b) Plate tectonics
c) Convection currents
d) Continental drift

At what type of boundary do tectonic plates come together?
a) Divergent
b) Transform
c) Convergent
d)

What idea did Alfred Wegener come up with?
a) Seafloor spreading
b) Plate tectonics
c) Magnetic reversals
d) Continental drift

What causes tectonic plates to move?
a) Seismic waves from earthquakes
b) Convection currents in the mantle
c) Volcanos
d) Earth’s magnetic field

At what boundary would you find volcanos?
a) Divergent
b) Transform
c) Convergent (continent to continent)
d) Convergent (ocean to continent)

Which of Earth's layer is made of molten metal?
a) Upper mantle
b) Lower mantle
c) Outer core
d) Inner core

What evidence did Alfred Wegener use to support his hypothesis?
a) fossils
b) Seismic waves from earthquakes
c) Seafloor age
d) Magnetic reversals

At what type of boundary do tectonic plates slide/scrape past eachother?
a) Divergent
b) Transform
c) Convergent (continent to continent)
d) Convergent (ocean to continent)

What sublayer of the upper mantle includes the crust?
a) Asthenosphere
b) Outer core
c) Lower mantle
d) Lithosphere

What is one piece of evidence for sea-floor spreading?
a) Same fossils found on different continents
b) Age of the seafloor
c) Matching geology
d) Difference in past climate

At what boundary do tectonic plates divide apart?
a) Divergent
b) Transform
c) Convergent (continent to contitnent)
d) Convergent (ocean to continent)

Who came up with the idea of seafloor spreading?
a) Wissman
b) Wilson
c) Wegener
d) Hess

Which of Earth's layers is composed of solid metal?
a) Inner core
b) Outer core
c) Lower mantle
d) Upper mantle

The mid-ocean ridge is what type of tectonic plate boundary?
a) Divergent
b) Transform
c) Convergent (continent to continent)
d) Convergent (ocean to continent)

At what type of boundaries do massive mountains form?
a) Divergent
b) Transform
c) Convergent (continent to continent)
d) Convergent (ocean to continent)

Hot fluid is...
a) less dense so it sinks
b) less dense so it rises
c) more dense so it sinks
d) more dense so it rises

The process that continually adds new meterial to the ocean floor pushing the older material away from the mid-ocean ridge.
a) Seafloor spreading
b) Plate tectonics
c) Convection currents
d) Continental drift

What caused Earth to separate into different layers?
a) Plate tectonics
b) Earthquakes
c) The sun
d) Density

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