Which risk increases when a river's sinuosity nears cut-off?

💡 Explanation

When a river channel's meanders become very pronounced, the *neck* between bends narrows, forming an oxbow shape progressing to a shortcut. *Avulsion accelerates* because the river flows straight, thereby favoring cutoff rather than the path of least resistance, rather than seismic adjustments.

• Which mechanism is amplified when climate change warms permafrost surrounding a fjord shoreline?
• Which consequence results when unimpeded longshore drift transports sediment?
• Which cave formation increases when soluble rock dissolves?
• Which outcome accelerates after plant root death spurs invertebrate activity?
• Which outcome occurs when a volcanic eruption's viscous lava flow enters the ocean at a subglacial boundary?
• Which long-term outcome results when isostatic rebound lags behind eustatic sea-level rise?