The mantle is composed of
A) iron and nickel.
B) iron-rich silicate rocks.
C) half liquid and half rocky material.
D) solid rock.
Correct Answer:
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Q51: The primary evidence that the outer core
Q52: Isostasy is
A)crustal equilibrium relative to the mantle.
B)the
Q53: Earth's core is probably composed of
A)silicate minerals.
B)aluminum
Q54: The Earth's magnetic field is generated in
A)outer
Q55: The outer core is liquid because
A)it is
Q57: Movement of the lithosphere
A)has a plastic-like flow.
B)causes
Q58: Thermal convection movement in the upper mantle
A)generates
Q59: The top of the mantle is the
Q60: The Earth's layer with plastic-like behavior is
Q61: What is the Mohorovicic discontinuity?
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