Geography • Physical GeographyMedium
Which of the following describes a 'Tombolo' depositional landform?
A. A ridge of sand connecting an island to the mainland or to another island✓ Correct Answer
B. A narrow spit of sand that completely encloses a shallow bay forming a lagoon
C. An accumulation of coarse boulders deposited at the base of a retreating sea cliff
D. A submerged wave-cut platform exposed only during extremely low spring tides
💡 Solution & Explanation
A tombolo is a distinct coastal depositional landform where accumulation of sand and shingle forms a natural bridge connecting an offshore island directly to the mainland. This geological feature develops due to wave refraction and diffraction around the island, causing sediment deposition in the quieter wave-shadow zone behind it. Conversely, features like spits terminate in open water without necessarily attaching an island to the shore.
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