Denudation — Question 8

The factors on which the shape and size of dunes depend are:

1. The direction and force of wind.
2. The speed of wind, carrying the dust and sand particles.
3. The nature and amount of sand brought by the wind.
4. Water features like lakes, streams etc., in the close-by area.
5. The nature of vegetation on the land.
6. The nature of the surface, where the formation of a sand dune takes place.