Which risk increases where agricultural runoff infiltrates karst cave systems?

💡 Explanation

Increased agricultural runoff introduces excess nutrients. This accelerates biological activity and carbon dioxide production via microbial respiration, driving dissolution of limestone through the mechanism of carbonic acid weathering. Therefore cave passages enlarge faster, rather than mineral precipitation.

• Which outcome is directly caused when aseismic creep along a transform fault stalls completely?
• Which process primarily causes fjords to become stratified with oxygen-depleted bottom waters?
• Which consequence results when a meander cutoff occurs, altering stream flow?
• Which outcome is caused when a confined aquifer discharges?
• Which outcome results when agricultural irrigation destabilizes an aquifer?
• Which outcome is most likely when artificial levees collapse along a major river?