Wind and Exposed Soil
	• Wind picks up tiny, loose particles (e.g. sand). • Removal of these particles, leaving only larger gravel and pebbles can lead to “desert pavement.” • Constant sand blasting of rocks causes a flattened and pitted windward surface. • Blowing sand comes to rest behind obstacles and eventually becomes a sand dune. • On a dune’s surface sand rolls and slides producing sand ripples.