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← GeographyWhich outcome occurs when wave actions continuously undercut a coastal cliff composed of sedimentary rock?
A)Formation of a wave-cut platform✓
B)Increase in sediment deposition offshore
C)Development of a tombolo structure
D)Rapid growth of a salt marsh
💡 Explanation
A wave-cut platform forms because the mechanism, hydraulic action, weathers softer rock at the cliff base, therefore the cliff retreats and produces a flat surface at sea level, rather than increased deposition distant marsh growth.
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