Desert landforms are shaped by various natural processes, primarily erosion and weathering. Common features include sand dunes, which are formed by wind-blown sand accumulating in mounds, and rock formations, which result from the gradual wearing away of softer rock layers. Another significant feature is the wadi, a dry riverbed that can flood during rare rainfalls. Additionally, badlands are characterized by steep slopes and deep ravines, created by the erosion of soft sedimentary rocks. These unique landforms contribute to the diverse landscapes found in deserts around the world.