Which long-term change results when an alluvial river’s sediment transport is reduced?

💡 Explanation

Floodplain aggradation diminishes because sediment deposition decreases; therefore, levees form more slowly, rather than more pronounced meanders, since without sufficient sediment being deposited, vertical accretion cannot occur which would shift deposition.

• Which outcome accelerates isolated sea stack erosion when wave diffraction occurs?
• Which outcome is most directly driven where desert deflation removes fine sediments?
• Which mechanism concentrates rare earth elements in regolith?
• Which outcome occurs when cyclical changes alter loess compaction?
• Which weathering outcome accelerated by iron sulfide oxidation?
• Which global wind pattern results because persistent high-pressure zones descend?