Question

Which of the following natural factors is likely to support coastal dune formation?

A. Winds blowing offshore
B. Vegetation around the beach
C. Strong winds blowing in all directions
D. Higher rate of erosion than deposition

Answer 1

I think the answer is of letter B

Answer 2

The correct option is B.
A dune is a mound of sand that is formed by the wind along the beach or in a desert. Dunes are formed when wind blow sands into a sheltered area behind an obstacle. Dune formation depend on the weight and size of the sand particles in relation to the blowing wind. The weight and size of the sand on the other hand depend on the vegetation around the beach.