Which outcome during glacial retreat increases sediment loading into cirque lakes?

💡 Explanation

When permafrost degrades, thaw slumps develop because ice within the cirque walls melts, resulting in slope instability and increased sediment transport into the cirque lake. Therefore increased sediment loading from permafrost degradation results, rather than meltwater, weathering or vegetation, which don't compromise slope stability as drastically..

• Which soil horizon characteristic occurs because of intense chemical weathering in tropical conditions?
• Which process dominates surface topography development within a braided stream's alluvial zone during flood events?
• Which outcome arises when weakened trade winds reduce upwelling off South America during an El Niño event?
• Which risk increases when construction occurs atop an ancient, inactive fault line within a large alluvial basin?
• Which risk increases when significant bioturbation ceases within soil?
• Which outcome results when a meander erodes through its neck during enhanced streamflow?