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Home arrow Chapter 9 arrow Concept 4 Quiz

Concept 4 Quiz

Discuss the role of heat, pressure, and composition (including volatiles) in the origin of magma.

This activity contains 10 questions.

Question 1.
With increasing depth in Earth's interior, there is a gradual decrease in temperature.

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Question 2.
All magmas have the same composition.

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Question 3.
The change in temperature with depth within Earth is known as

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Question 4.
1200-1400 degrees Celsius is always hot enough to completely melt rock in the upper mantle.

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Question 5.
Rock with enriched volatile content generally has __________ melting temperature.

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Question 6.
Silica-rich minerals tend to be the last to crystallize and the first to melt.

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Question 7.
Rocks with significant volatile content are known as

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Question 8.
The largest volume of magma produced from melting mantle rock is triggered by

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Question 9.
Magma originates when essentially solid rock located in the crust and upper mantle melts.

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Question 10.
Which of the following determines whether rock material within Earth exists as a liquid or solid?

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