Which of the following causes the formation of surf on a breaking wave?

Beach erosion

Low wind speeds

Deposition of sand on a beach

Friction with the ocean bottom at the coast

Question

Which of the following causes the formation of surf on a breaking wave? 

 Beach erosion 

 Low wind speeds 

 Deposition of sand on a beach 

 Friction with the ocean bottom at the coast

agreene · Answer

I cant remember exactly, but I should think the Friction with the ocean bottom at the coast. My rational is that the normal vector exerted by the sea floor will increase as the distance between the surface and the top of the water would increase in a manner to create it.

However the wind one kinda makes sense too.