Multiple Choice
The mantle can be separated into two different portions: the lower mantle and the upper mantle.The lower mantle is
A) completely solid due to extreme pressure that prevents iron-rich silica rocks from melting.
B) composed of silly putty that flows like molasses.
C) rigid and has no capability of flow.
D) predominantly liquid silica.
Correct Answer:
Verified
Correct Answer:
Verified
Q61: In the 1950s a plot of the
Q62: Compressive forces cause the crust to<br>A)buckle and
Q63: Detailed mapping of the ocean floors revealed<br>A)huge
Q64: The relative movement of a strike-slip fault
Q65: In an undeformed sequence of rocks,the youngest
Q67: Continental crust is<br>A)thinner than oceanic crust.<br>B)less dense
Q68: In comparison to S-waves,P-waves<br>A)cannot travel through solids,they
Q69: The outer core is<br>A)rock.<br>B)plastic.<br>C)liquid.<br>D)the source for volcanoes.
Q70: Which one of the following is not
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