Which deposition outcome characterizes rapid flow deceleration below a mountain range?

💡 Explanation

Alluvial fans form because increased sediment load coupled with decreased channel slope promotes deposition. Water velocity slows quickly due to reduced gradient causing sediment to drop out, therefore forming an alluvial fan rather than other channel morphologies under different conditions.

• Which climate outcome results at the polar high?
• Which slope failure risk escalates significantly on high-latitude construction sites with thawing permafrost?
• Which process causes increased stream meandering downstream in a humid, temperate region due to deforestation?
• Which consequence results when strike-slip transform boundaries lock?
• Which landscape outcome results when wind-driven deflation surpasses supply?
• Which outcome occurs when glacial melt intensifies significantly during summer?