Question 4
Tsunamis generated by submarine landslides are not directional and are never preceded by a receding wave. (Choose the best answer.)
False. Submarine landslides tend to move down slope in a definite direction, so the waves they generate can be highly directional, like earthquake-generated tsunamis. In addition, because the seabed slumps downhill, this creates a trough at that location, which can precede the crest at the shore, depending on orientation.