Which process limits soil formation within an arid region alluvial fan system?

💡 Explanation

When flash floods occur, erosion removes topsoil faster than it can form, due to the arid climate inhibiting biological activity so that regolith development is slow. Therefore erosion limits the soil formation, rather than deposition, leaching or stabilization each requiring different conditions to dominate.

• Which weather phenomenon results from the Coriolis effect acting on synoptic air masses influenced by a high-pressure system?
• Which effect accelerates river avulsion on a broad alluvial plain with high sediment load?
• Which outcome occurs when wave action undermines a coastal arch, forming offshore stacks?
• Which mechanism initiates the eutrophication process in freshwater lakes experiencing agricultural runoff?
• Which mechanism creates increased salinity near desert stream outflows?
• Which risk increases when an alluvial river channel is artificially straightened along its floodplain?