Which risk occurs when deflation exceeds deposition near coastal dunes?

💡 Explanation

Increased saltwater intrusion occurs because a lowering of the water table due to deflation exceeds groundwater recharge; therefore, saltwater replaces freshwater in the aquifer, rather that bedrock weathering or temperature/nutrient effects dominating.

• Which risk increases when high discharge overtops levees?
• Which outcome is accelerated when persistent katabatic winds erode exposed bedrock?
• Which erosion event results from high pore liquid pressure in sediments on steep volcanic slopes?
• Which outcome increases adjacent coastal erosion after a transform boundary earthquake?
• Which process exacerbates mantle wedge melting in subduction zones?
• Which consequence results when sand supply decreases near a barrier island system?