Which Landforms term is correctly associated with formation process: “formed when a meander loop is cut off from the river”, and also with “usually lies on a floodplain”?

Correct Answer: Option B — Oxbow lake. Oxbow lake is correct because it is formed when a meander loop is cut off from the river. Oxbow lake is also associated with usually lies on a floodplain. A further identifying fact is that Oxbow lake is usually lies on a floodplain. Another useful fact is that Oxbow lake is associated with it records an abandoned river channel. Why the other options are incorrect: Option A — Sand dune: It is formed by accumulation of wind-blown sand and is associated with its shape reflects wind direction and sand supply. Option C — Fjord: It is formed when the sea floods a deep U-shaped glacial valley and is associated with typically narrow, deep and steep-sided. Option D — Fold mountain: It is formed by compression and folding of crustal layers and is associated with often occurs along convergent plate margins. Exam Takeaway: Link Oxbow lake with “formed when a meander loop is cut off from the river” and “usually lies on a floodplain” for quick revision.