Which outcome occurs when groundwater exploitation exceeds recharge in an alluvial aquifer?

💡 Explanation

Land subsidence results because the reduction of pore water pressure in the alluvial sediments causes compaction; therefore the skeletal structure weakens leading to potential regional lowering, rather than enhanced biota or weathering effects.

• Which risk increases for coastal fisheries in the eastern Pacific Ocean when El Niño suppresses upwelling?
• Which phenomenon causes increased soil acidity due to mineral depletion?
• Which mechanism causes tsunami generation when a submarine earthquake occurs involving vertical seafloor displacement?
• Which risk increases when porous alluvial aquifers are rapidly depleted by irrigation pumping?
• Which outcome results from eolian abrasion in deserts?
• Which process limits levee growth due to sediment discontinuities?