Which Landforms term is correctly associated with formation process: “formed by outer-bank erosion and inner-bank deposition”, and also with “common in the middle and lower course of rivers”?
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Correct Answer: Option B — Meander. Meander is correct because it is formed by outer-bank erosion and inner-bank deposition. Meander is also associated with common in the middle and lower course of rivers. A further identifying fact is that Meander is common in the middle and lower course of rivers. Another useful fact is that Meander is associated with a cut-off meander may form an oxbow lake. Why the other options are incorrect: Option A — Oxbow lake: It is formed when a meander loop is cut off from the river and is associated with usually lies on a floodplain. Option C — Sand dune: It is formed by accumulation of wind-blown sand and is associated with its shape reflects wind direction and sand supply. Option D — Fjord: It is formed when the sea floods a deep U-shaped glacial valley and is associated with typically narrow, deep and steep-sided. Exam Takeaway: Link Meander with “formed by outer-bank erosion and inner-bank deposition” and “common in the middle and lower course of rivers” for quick revision.