Multiple Choice
The primary evidence that the outer core is molten is an abrupt
A) increase in the velocity of P-waves,but no increase in S-waves.
B) increase in the velocity of L-waves.
C) stop of S-wave propagation,and a decrease in P-wave velocity.
D) stop of P-wave propagation,and a decrease in S-wave velocity.
Correct Answer:
Verified
Correct Answer:
Verified
Q33: Distinguish between anticlines and synclines.
Q34: The lithosphere floats atop the<br>A)mantle.<br>B)crust.<br>C)asthenosphere.<br>D)mohorovicic.
Q35: The main idea of seafloor spreading is
Q36: When stress exceeds a rock's elastic limit,the
Q37: Movement of the lithosphere<br>A)has a plastic-like flow.<br>B)causes
Q39: Why are most earthquakes generated near plate
Q40: Oceans are about four times as deep
Q41: The theory of seafloor spreading is supported
Q42: The Mohorovicic discontinuity marks the change in
Q43: The Mohorovicic discontinuity was discovered by observing<br>A)earthquake