Which outcome sharply increases weathering rates where fractured limestone underlies shallow soil?

💡 Explanation

Karst topography formation accelerates due to weathering and dissolution by rain and groundwater accessing fractures via chemical weathering; this dissolution process enlarges fractures because the carbonic acid reacts with the calcium carbonate, therefore increasing weathering rates rather than other effects.

• Which outcome results when variations in thermohaline circulation modify the North Atlantic Deep Water formation process?
• Which process causes increased lahar hazard after tephra deposition?
• Which process initiates when accumulated snow within a cirque experiences repeated freeze-thaw cycles?
• Which pressure distribution does the coastal rain shadow effect require to form?
• Which outcome is observed when subsurface clay layers impede water flow?
• Which phenomenon initiates turbidity currents along submarine fault scarps during seismic activity?