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

A)Accelerated saltwater intrusion inland✓

B)Increased frequency of algal blooms

C)Reduced thermal convection inland

D)Increased volcanic ash fallout

💡 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.

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

💡 Explanation

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