* Wind: Deserts are characterized by strong winds that can pick up and transport sand and dust, creating sand dunes and eroding rock formations. This process is known as wind abrasion.

* Water: While deserts are generally dry, occasional rainfall can lead to flash floods that have significant erosive power. These floods can carve out canyons, move sediment, and create arroyos.

* Temperature changes: The extreme temperature swings in deserts cause rocks to expand and contract. This repeated expansion and contraction can lead to thermal stress fracturing, breaking down rocks into smaller pieces.

* Gravity: Gravity plays a role in erosion by pulling material downslope, contributing to the formation of canyons and other landforms.

It's important to note that these agents often work together. For example, wind can carry sand particles that are then used for abrasion, while water can carry away the eroded material.