Multiple Choice
Hot spots are caused by
A) friction due to the lithosphere sliding atop the asthenosphere.
B) unusually dense concentrations of radioactive isotopes at various points in the crust.
C) hot plumes of mantle material that rise up through cooler,denser surrounding rock.
D) zones of localized subduction that produce melting of the mantle.
Correct Answer:
Verified
Correct Answer:
Verified
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