| A | B |
|---|
| Infiltration and evaporation | Can dry up desert streams |
| Running water | this causes most errosion in the desert |
| Deflation | Lifting and removl of loose particle by the wind |
| Desert pavement | Stony surface layer in the desert |
| Loess | Wind blown silt |
| Ephemeral streams | Only carry water after a rain; washes or arroyos |
| Abrasion | wind blown sand cuts and polishes |
| Dunes | Mounds or ridges of sand |
| Barchan dunes | Cresent shaped |
| Transverse dunes | Winds are perpendicular to the wind |
| Longitudinal dunes | winds are paralle to the dunes |
| Parabolic dunes | Often form as the result of strong off-shore winds |
| Star dunes | Form in areas of highly variable wind direcion |
| Wadis | the valley of streams that are usually dry |
