Land subsidence is likely when ________.

Question

Quizplus · Accepted Answer

When discharge lowers the water table, there is a reduction in the pressure of rocks and sediments filled with groundwater. This can cause these materials to compact and lead to land subsidence. Groundwater recharge (A) and the increase of calcium and magnesium content in groundwater (B) do not directly cause land subsidence. The raising of the water table (C) may cause temporary fluctuations, but chronic subsidence typically only occurs when it is lowered.

Land Subsidence Is Likely When ________