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Question
Obsidian is an igenous rock with a glassy appearance and minimal crystal growth. What accounts for this?A) Obsidian is an intrusive igneous rock that cooled slowly beneath the Earth's surface, result in little crystal growth.
B) Obsidian is an extrusive igneous rock that cooled slowly on the Earth surface, resulting in little crystal growth.
C) Obsidian is an extrusive igneous rock that cooled very slowly on the Earth surface, resulting in little crystal growth.
D) Obsidian is an intrusive igneous rock that cooled rapidly beneath the Earth's surface, result in little crystal growth.
Answer
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Related questions
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The basis for defining the length of a day is the fact that
A) Earth rotates east to west.
B) Earth moves through 365.25 days a year in its orbit about the Sun.
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D) Earth does not rotate; rather, it revolves.
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B) Life processes generally are shaped to the abiotic spheres.
C) It is not connected to the overlapping inorganic spheres.
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A) It is never referred to as the ecosphere.
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A) that always corresponds to a great circle.
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A) representative fraction.
B) graphic scale.
C) written scale.
D) relative scale.
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A) diagram.
B) cone.
C) map projection.
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A) representative fraction.
B) graphic scale.
C) written scale.
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Q:
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D) a line of equal longitude.
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A) earlier than
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