Which topographic outcome occurs when permafrost thawing triggers widespread solifluction on a hillside?

💡 Explanation

When warming temperatures thaw permafrost, widespread solifluction occurs because the active layer liquefies and flows downslope, leading to ground subsidence and thermokarst depression development. Therefore, thermokarst depressions result,rather than increased ice, channel incision, or hillslope stability which are unrelated to melted permafrost.

• Which outcome results when a meander erodes through its neck during enhanced streamflow?
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• Which outcome occurs when a barrier island's dune system loses vegetation cover?