Question

plese tell me answer what are sand dunes?

Answer 1

hill like structure made by sands which changes it's shape due to winds.

Answer 2

A sand dune is a mount, hill or ridge of sand that lies behind the part of the beach affected by tides. They are formed over many years when windblown sand is trapped by beach grass or other stationary objects. ... Without vegetation, wind and waves regularly change the form and location of dunes.

Pls add it to the brainliest