Which outcome arises when groundwater saturates fractured limestone?

💡 Explanation

Karst topography forms due to chemical weathering via dissolution because carbonic acid in groundwater dissolves calcium carbonate in limestone, which creates sinkholes and caves affecting the landscape; therefore, karst accelerates rather than inhibiting silicification.

• Which risk is increased when excessive groundwater drawdown occurs affecting limestone aquifers?
• Which outcome develops across terrains when variations exist in limestone dissolution?
• Which flow regime change occurs when a heavy pyroclastic surge passes over a saturated coastal plain?
• Which outcome occurs when rapidly meandering river streams flow onto a broad, submerged continental shelf?
• Which outcome results when levee erosion in an alluvial plain?
• Which outcome occurs when a fault experiences aseismic creep?