When the velocity is further increased beyond the stage where sand waves are formed in association with the surface waves, the waves are then called as ____________

When the velocity is further increased beyond the stage where sand wav

1.	When the velocity is further increased beyond the stage where sand waves are formed in association with the surface waves, the waves are then called as ____________
A.	dunes
B.	ripples
C.	flat surface
D.	antidunes
Answer» E.