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← GeographyWhich outcome occurs when a coastal levee under intense wave action exceeds its design shear strength?
A)Localized mass wasting near base✓
B)Accelerated rates of saltation occur
C)Bioerosion reduces structural components
D)Eutrophication increases nitrogen runoff
💡 Explanation
Localized mass wasting occurs because exceeding the design shear strength induces slope instability that triggers gravitational erosion. Therefore, the structure fails at its base, rather than involving airborne particles or biological/chemical factors.
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