Which of the following statements is true of the asthenosphere?
A) The asthenosphere is composed of continental and oceanic plates.
B) The asthenosphere is composed of outer mantle material.
C) The asthenosphere is composed of the crust and a portion of the outer mantle.
D) The asthenosphere is composed of the inner portion of the mantle and the outer core.
E) The asthenosphere is composed only of crust.
Correct Answer:
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