Which effect impedes infrastructure development in regions experiencing active solifluction?

💡 Explanation

When permafrost thaws during solifluction, the active layer becomes saturated and flows downslope, because the underlying frozen ground prevents drainage, causing localized ground subsidence and structural tilting. Therefore, ground subsidence results, rather than concrete degradation, increased seismicity, or riverbank destabilization, which are caused by other processes.

• Which process increases salinity in a closed basin lake in an arid climate?
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