Which mechanism causes braided stream formation across an alluvial plain after rapid glacial retreat?

💡 Explanation

When a glacier rapidly retreats, increased sediment load is released because meltwater's capacity to transport material is exceeded, causing rivers to destabilize and form braided channels. Therefore increased sediment load results, rather than stabilising vegetation channel, slope change, or lower discharge which promote single-channel flow.

• Which ecosystem collapse mechanism occurs in coastal South America during a strong El Niño event?
• Which outcome results from the Coriolis effect on large-scale ocean currents moving away from the equator?
• Which mechanism amplifies coastal erosion rates along the eastern Pacific coastline during a strong El Niño event?
• Which atmospheric consequence occurs when polar cell weakening develops?
• Which effect accompanies stratovolcano formation where subducting oceanic crust hydrates the mantle wedge?
• Which erosional mechanism causes enhanced fjord deepening where underlying rock layers dip seaward?