Which mechanism causes the braiding of a stream flowing from a melting glacier at high altitude?

💡 Explanation

When sediment load overwhelms the stream's transport ability, aggradation occurs because flow diverges around deposited sediment, resulting in channel splitting and braiding that is common in glacial outwash plains. Therefore braiding results, rather than the alternatives, representing the effects of excessive deposition.

• Which landform characteristic increases when glacial abrasion exceeds deposition?
• Which risk increases along riverbanks composed of unconsolidated silty alluvial deposits?
• Which mechanism causes meromictic lakes to exhibit permanently stratified layers?
• Which outcome occurs when a steep mountain slope underlying a glacial cirque thaws, exceeding its angle of repose?
• Which geological change accelerates stream erosion in regions undergoing rapid glacial retreat?
• Which process causes soil horizon development during pedogenesis?