Multiple Choice
Spreading centers occur along
A) trenches.
B) transform faults.
C) mid-ocean ridges.
D) the northern and western margins of the Juan de Fuca plate.
Correct Answer:
Verified
Correct Answer:
Verified
Q15: According to the theory of seafloor spreading,
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?
Q21: Earth's magnetic field<br>A)never appreciably changes.<br>B)has reversed itself
Q23: The balance of gravitational and buoyant forces
Q24: The inner core is solid because<br>A)it is
Q25: New lithosphere is formed at<br>A)ocean trenches.<br>B)convergent plate
Q58: Earth's internal layers were discovered by studying<br>A)seismic