Which risk increases when sediment supply outpaces removal in alluvial fan deposits?

💡 Explanation

Channel avulsion becomes rife because rapid sedimentation overwhelms channel capacity, causing **aggradation**, which directs flow elsewhere rather than maintaining its current path. Therefore, frequent shifts occur; contrasting decreased infiltration happens at fine-grained deposition.

• Which mechanism allows cave formation despite limited rainfall?
• Which failure mode becomes progressively more risky as alluvial fans aggrade in tectonically active regions?
• What erosional outcome significantly increases where persistent katabatic winds encounter exposed bedrock outcrops?
• Which outcome directly increases when bioturbation intensifies in topsoil?
• Which outcome is accelerated by aeolian sand compaction?
• Which weathering outcome occurs with increased cryostatic limits in soils?