Which consequence results when excessive groundwater extraction lowers the water table beneath an alluvial aquifer?

💡 Explanation

Aquifer compaction and subsidence increase because pore water pressure, which once supported the alluvial sediment structure, decreases under the mechanism of effective stress; therefore, the aquifer collapses under increased load, rather than maintaining volume like an unconfined situation.

• Which outcome results when subduction of oceanic crust halts?
• Which process explains pyroclastic flow formation during Plinian volcanic eruptions?
• Which pedogenic outcome results from increased bioturbation activity?
• Which primary effect occurs as a result of the cyclic elastic strain accumulation near strike-slip fault lines?
• Which mechanism causes Benioff zone earthquake frequency pattern during oceanic plate subduction?
• Which outcome occurs upon the atmospheric introduction of high-silica pyroclastic material?