Which outcome occurs when prolonged aquifer depletion underlays karst?

💡 Explanation

Increased pore pressure reduction causes effective stress increase via compaction because the effective intergranular stress rises; therefore, voids collapse and cause sinkholes, rather than stable soil. Chemical weathering also accelerates.

• Which process MOST directly maintains the high nutrient concentration within oceanic gyre boundary currents?
• Which seismic risk increases when the angle of subduction decreases below a deep-sea trench?
• Which risk increases to stratospheric ozone when polar vortex weakens?
• Which mechanism amplifies stream erosion when deforestation occurs on steep slopes within equatorial rainforests?
• Which risk significantly increases when rising magma incorporates substantial groundwater near a stratovolcano crater?
• Which outcome concerning soil composition occurs adjacent to desert ventifact formation?