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Question
Metamorphism occurs when a rock ________.A) experiences conditions that include high temperatures
B) experiences conditions that include high pressures
C) experiences conditions that are significantly different from those that formed the rock
D) experiences conditions that are similar to those that formed the rock
Answer
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A) reserve
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What does the tendency of micas to produce thin cleavage flakes suggest about its crystal structure?
A) The crystal structure is characterized by complex polymerized mats that form a sheetlike structure.
B) The structure is characterized by rings that form an interlocking network, forming planar sheets.
C) The structure is produced by flow in the igneous rock, aligning glass layers within the crystal structure.
D) The atoms are arranged in orderly arrangements that form strongly bonded sheets separated by weak bonds between the sheets.
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Use the Periodic table below to answer the following questions: When electrons are shared amongst all atoms, the resulting bond is a(n) ________ bond.
A) covalent
B) ionic
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Use the Periodic table below to answer the following questions: Element 20, Ca, has what chemical property?
A) It behaves as a metal ion, giving up two electrons to form a +2 ion.
B) It tends to form covalent bonds and an ion with a charge of +1.
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D) It tends to be inert, and thus is dispersed throughout the crust.
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B) innermost electron shell because the electrons can be transferred to the nucleus
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D) Any electron can exchange with adjacent atoms to form a bond; there is no preference.
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Internally, the earth consists of spherical shells with different compositions and densities.
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A) the biosphere
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B) heat from Earth's interior
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D) none of the above
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A) deep-ocean trenches
B) oceanic ridges
C) seamounts
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A) along coastlines
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D) in areas that receive large amounts of rainfall
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A major cause of the differences in elevation between ocean basins and continents is ________.
A) viscosity
B) temperature
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B) sea floor spreading
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A) Lithosphere
B) Asthenosphere
C) Lower mantle
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A) hot spots on the sea floor, like Iceland
B) spreading ridges
C) convergent plate margins
D) transform plate margins