Author Question: True or False: All rift valleys extend sufficiently to form new continents and plate boundaries. ... (Read 54 times)

xclash · **on:** Jul 16, 2018

True or False: All rift valleys extend sufficiently to form new continents and plate boundaries.

Indicate whether this statement is true or false.

Question 2

The seafloor spreading hypothesis predicts that the mid-ocean ridges should be locations of rising asthenosphere. This prediction is supported by seismic data that indicates

A) faster seismic wave velocities at the trenches.
B) slower seismic wave velocities at the trenches.
C) faster seismic wave velocities at the ridges.
D) slower seismic wave velocities at the ridges.