Sand Dunes | Coastal CareSand dune formation, types of dunes, and where they exist. . Dunes can roll over trees and buildings, or be washed away by storms. .. Thus, in the process of erosion, dunes can be swept away and do little the . Prevailing wind directions, beach width and time available to build a dune are part of the sand supply picture.sand washing process picture,The Mandala: Why Do Monks Destroy It? | HuffPostSep 20, 2011 . But it is more than a picture. Sand painting is an intricate process. It requires millions of pieces of sand to make a mandala five by five feet.
sand washing process picture