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← GeographyWhich outcome often results when decreased wave energy surrounds isolated sea stacks?
A)Tombolo formation behind the stack✓
B)Accelerated stack basal undermining
C)Increased stack colonization by seabirds
D)Stack merging forming arch structures
💡 Explanation
Tombolo formation results from decreased wave energy. Reduced wave action behind the stack causes sediment deposition, and sediment accumulates because wave diffraction creates a sheltered zone, therefore tombolos form rather than direct erosion in open water conditions.
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