Which geologic outcome occurs when a river's slope abruptly decreases at the base of a mountain range?

💡 Explanation

When a river's slope decreases sharply, sediment transport capacity drops because stream energy dissipates prompting aggradation and division of the flow into multiple channels. Therefore a braided stream pattern is the correct outcome, rather than canyon formation, meanders, or abyssal plain found in other environments.

• Which outcome occurs from Antarctica's density-driven water circulation?
• Which outcome results when persistent winds initiate deflation of poorly-vegetated playas?
• Which risk increases when increased freshwater runoff disrupts the density gradient within a subtropical gyre?
• Which outcome results when prevailing winds consistently refract toward headlands?
• Which outcome directly limits phytoplankton growth after an upwelling event during summer stratification?
• Which consequence results when coastal upwelling ceases near a major fishing ground?