Tag Archives: sand dunes

Sand Dunes The strong action of wind generally deposits sand in the form of mounds. These sand mounds are known as “Sand Dunes”. The sand traveling as a bed load in the wind accumulates wherever it meets any obstruction, such as a boulder or a bush. As the accumulation of sand grows, it traps even more sand. In this manner, dunes are created. Sand dunes have a gentle slope (5° […]

The air current in motion is called “wind”. The wind is an important agent of erosion, transport and deposition. Its work is particularly seen in arid regions. Wind Erosion Although wind erosion is not restricted to arid and semiarid regions, it does its most effective work in these areas. Wind does erosion in three ways: (i) deflation, (ii) abrasion, (iii) attrition. (1). Deflation: Lifting and removal of loose material by […]