Which outcome occurs when glacial sediment blocks a valley, trapping meltwater?

💡 Explanation

A moraine dammed lake forms, via glacial deposition. The mechanism of **glacial till accumulation** blocks water flow. Therefore a lake occurs rather than a braided stream, because the sediment accumulation creates a basin rather than allowing water dispersion.

• Which soil consequence results when increased water runoff accelerates weathering?
• Which outcome results when deep-sea organisms enhance bioturbation?
• Which outcome occurs when coastal upwelling declines within gyres?
• What outcome develops where mountain river flow enters unconfined floodplain terrain?
• Which geological effect results in loess deposition from glaciers?
• Which outcome occurs when a subducting oceanic plate encounters increased mantle resistance?