Which risk increases when glaciers recede and drain lakes?

💡 Explanation

Glacial retreat leaves unstable moraine dams that can fail during a glacial-lake outburst flood because hydrostatic pressure exceeds moraine strength; therefore, catastrophic flooding is more probable in downstream areas, rather than other geophysical risks unrelated to the ice melt.

• Which downstream soil effect mainly results from prolonged agricultural irrigation in arid climates?
• Which outcome occurs when sediment-laden flows decelerate at a break in slope?
• Which consequence results when excessive accumulation of pyroclastic material on a volcano flank leads to ground saturation during heavy rainfall?
• Which process explains saltwater lake formation near coasts?
• Which outcome commonly occurs when differential stress exceeds rock strength along faults?
• Which outcome negatively impacts coastal fisheries during rapid thermocline deepening?