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Physical Science Study Set 3

Physics & Astronomy

Quiz 21 :

Structural G Eology and P Late Tectonics

Quiz 21 :

Structural G Eology and P Late Tectonics

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The lithosphere "floats" on the asthenosphere, and the parts of lower density float higher. This state of buoyancy is called
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B

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Studies of remanent magnetism in rocks spreading from the Mid-Atlantic Ridge reveal symmetric bands of magnetic anomalies. These anomalies provide
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C

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The lithosphere consists of
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B

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The plastic-like substratum on which the lithospheric plates move is called the
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Alfred Wegener speculated that the present continents were once part of a single supercontinent that he named
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Evidence for the existence for Pangaea includes
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The location on Earth's surface directly above an earthquake's focus is called
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Earth's mantle is
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A mid-ocean ridge is formed at the boundary of two plates
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The deflection of one lithospheric plate under another is called
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A modern geologic theory that considers Earth's lithosphere to be made up of moving plates is known as
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Evidence of seafloor spreading along the Mid-Atlantic Ridge is given by
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The idea of continental drift was not generally accepted when Wegener proposed it because
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The theory of seafloor spreading was proposed in 1960 by
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Pangaea is believed to have broken up about how many years ago?
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Geologic evidence that supports the theory of continental drift does not include
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The basic mechanism for plate movement is thought to be
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Which of the following is not one of the three types of plate boundaries?
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Remanent magnetism is present in rocks that contain the mineral named
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Earth's core is believed to be composed of
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