A wave which retreats after hitting the coast is called? by Sunday | Aug 11 | Geography WAEC | 0 comments A. backwash B. swash C. underflow D. trough E. wavelength Correct Answer: Option B – swash Users Also Read These:The diagram given illustrates wave-form. Determine…A carpenter on top of a roof of 20.0m high dropped a…The distance between two successive troughs of a…Which property of a wave remains constant when the…The change of the direction of a wave-front because…