Sand dunes do blow away it is just that more sand is blown on to it faster then it is blown off.
the roots of the plans keep it grounded.
When the high strong wind blow in desert it take away lots of sand with it and collect it in some other place by which sand dunes formed.
The wind will blow the sand away from the desert soil, leaving the small rocks to create a gravelly surface.
because they live in the desert where there are sand storms so they have them to protect their eyes.
Desert pavement does not move unless it is carried away by a flash flood. However, the wind can remove sand surrounding the sand in desert pavement.
The wind will blow the sand away from the desert soil, leaving the small rocks to create a gravelly surface.
Too many people walking in the dunes, will trample and destroy the Marram Grass and Lyme Grass that binds the sand dunes together. Once destroyed, the wind can blow off the sand to form hollows known as 'blow-outs' and blow the sand inland.
It blows the sand aroud. Or the water can wash it away. Such as a sand storm.
Sand, sand, and desert sand
Dunes are hills or small mountains made of sand and normally form in the desert. They can move because the wind may blow the sand from one point to another.
A hill of sand in a desert is normally referred to as a dune
The Arabian Desert is the largest sand desert.
Beach sand is definitely different from desert sand. Beach sand is made up of many different particles not found in desert sand.