Which long-term threat increases as vegetation degrades on a coastal dune?

💡 Explanation

Increased erosion weakens the dune structure because plant roots no longer stabilize the sand, permitting greater rates of saltwater intrusion during tidal surges. Therefore, saltwater intrusion rises rather than thermal changes or algal blooms without stabilization.

• Which outcome increases vulnerability to sinkhole formation when excessive groundwater usage compacts aquifers beneath karst landscapes?
• Which mechanism primarily drives deep ocean thermohaline circulation patterns globally?
• Which distribution pattern results when coastal upwelling intersects with a subtropical gyre system?
• Which geological outcome is most likely following transform fault locking?
• Which consequence results when increased wave energy impacts longshore transport?
• Which marine ecosystem effect results when thermocline depth sharply increases?