Evidence that the entire thickness of the ocean water column is in motion during a tsunami includes
A) the short period.
B) the low velocities.
C) the low wave base.
D) the large wavelengths.
Question 2
Elongate sediment ridges that project from headlands in the direction of the longshore current are called
A) sea stacks.
B) berms.
C) spits.
D) groins.