What is a Sand Spit?

What is a Sand Spit?

• A. A submerged sand ridge parallel to shore.
• B. A tall rocky cliff.
• C. A narrow point of sand projecting into the sea, formed by longshore drift.
• D. A volcanic island.

Answer: (C)

A sand spit is a narrow point of sand that grows outward from the shore into the sea. It forms when waves approach the coast at an angle, driving sediment along the shore (longshore drift). When this sediment reaches a change in the coastline, such as the mouth of a bay, the energy drops and the material settles out, creating a gradually extending land projection into the water. Over time the spit can grow longer and may bend or hook if currents shift. This is different from a submerged sand ridge parallel to shore, which would be a sand bar lying offshore rather than projecting from land. It’s also not a tall rocky cliff, which is a different coastal feature, nor a volcanic island, which forms from volcanic activity rather than coastal sediment deposition.

A sand spit is a narrow point of sand that grows outward from the shore into the sea. It forms when waves approach the coast at an angle, driving sediment along the shore (longshore drift). When this sediment reaches a change in the coastline, such as the mouth of a bay, the energy drops and the material settles out, creating a gradually extending land projection into the water. Over time the spit can grow longer and may bend or hook if currents shift.

This is different from a submerged sand ridge parallel to shore, which would be a sand bar lying offshore rather than projecting from land. It’s also not a tall rocky cliff, which is a different coastal feature, nor a volcanic island, which forms from volcanic activity rather than coastal sediment deposition.