Which mechanism causes the formation of terraced alluvial fans in arid environments after prolonged tectonic uplift?

💡 Explanation

When base level drops due to uplift, cycles of incision and aggradation result because the river's downcutting ability increases during wetter periods, and deposition becomes dominant during drier periods, creating terraces. Therefore option "A" results, rather than other options such as chemical, aeolian or glacial, which do not match the forcing conditions.

• Which outcome occurs when North Atlantic Deep Water formation weakens substantially?
• Which process most directly causes terrace formation in a river valley after alluvial deposition?
• Which mechanism causes increased surface water salinity within subtropical ocean gyres?
• Which sedimentary consequence typically results when rapid deglaciation occurs near a fjord complex?
• Which spatial outcome results when desert vegetation stabilizes parabolic dune arms?
• Which long-term consequence directly follows from pervasive solifluction near tundra oil pipelines?