Which of the following landforms is not associated with an advancing shoreline?

Analyze the question: We need the landform that is NOT associated with an advancing shoreline, which is a coastline growing seaward through deposition.

Explain the concept:

• Advancing (emergent or depositional) shoreline: The coast builds outward as sediment is deposited. Typical features are beaches, spits, bars, tombolos and sand dunes.
• Retreating shoreline: The coast is cut back by wave erosion. Typical features are cliffs, wave-cut platforms, caves, arches and stacks.

Step-by-step solution:

• A. Spit is a long ridge of sand or shingle attached to the land at one end. It is formed by deposition, so it belongs to an advancing shoreline.
• B. Stack is an isolated pillar of rock left standing after an arch collapses. It is formed by erosion, so it belongs to a retreating shoreline.
• C. Beach is an accumulation of sand or shingle. It is formed by deposition, so it belongs to an advancing shoreline.
• D. Tombolo is a deposit of sand or shingle linking an island to the mainland. It is formed by deposition, so it belongs to an advancing shoreline.

Only the stack is an erosional feature, so it is the odd one out.

Answer: B. Stack

Tip: Think "build vs. break". Depositional features (spit, bar, beach, tombolo) build land outward. Erosional features (cliff, cave, arch, stack) break the land down. A stack is the last stage of the erosion sequence: cliff → cave → arch → stack → stump.