The motion of wind-driven waves affects the bottom
A) At all depths
B) Only in water depths less than 20 m
C) At depths less than half the wave length
D) At depths less than two times the wave length

Question

Quizplus · Accepted Answer

The motion of wind-driven waves affects the bottom at depths less than half the wavelength. This is because the orbital motion of water particles in waves diminishes with depth, becoming negligible at a depth of about half the wavelength.

The Motion of Wind-Driven Waves Affects the Bottom