Multiple Choice
According to the theory of seafloor spreading, large quantities of molten rock rises up along
A) the mid-ocean ridges.
B) trenches that border continental margins.
C) atolls surrounding the Pacific volcanic rim.
D) subsiding divergent margins.
Correct Answer:
Verified
Correct Answer:
Verified
Q10: Oceans are about four times as deep
Q16: Most of Earth's seismic activity, volcanism, and
Q17: The Mohorovicic discontinuity exists because<br>A)the temperature inside
Q18: Surface waves are useful for investigating Earth's
Q19: Which waves indicate the most extensive shadow?
Q20: Spreading centers occur along<br>A)trenches.<br>B)transform faults.<br>C)mid-ocean ridges.<br>D)the northern
Q30: When the magnetic field of Earth is
Q81: What is the evidence for Earth's central
Q159: How does erosion and wearing away of
Q170: Briefly describe the different types of plate