Which of the following statements about the lower mantle is NOT true?
A) The rocks near the base of the lower mantle are more rigid than those near the top of the lower mantle.
B) P waves reach a velocity of 13.6 kilometers per second at the base of the mantle.
C) The rocks of the lower mantle are most likely magnesium silicates and oxides.
D) The lower mantle is solid because its temperatures are lower than those in the asthenosphere.
Correct Answer:
Verified
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