Which feature is the wide flat valley that is usually flooded by a river and deposits fertile material?

Which feature is the wide flat valley that is usually flooded by a river and deposits fertile material?

• A. Flood Plain
• B. Interlocking Spurs
• C. Gorge
• D. Meander

Answer: (A)

Rivers create a wide, flat valley that is often flooded and builds up fertile soils through repeated sediment deposition. This broad, level area is called the flood plain. When floods spill over the banks, they spread fine silt and clay across the valley floor, leaving behind alluvium that makes the land especially fertile for farming. That combination of a wide, flat valley and regular flooding explains why this feature is the flood plain. Interlocking spurs are produced by a river weaving around a series of ridges in the upper valley, not the flat, flood-prone surface. A gorge is a steep-sided, narrow valley formed by intense downcutting, not a wide floodplain. A meander is a bend in a river’s course, typically within a floodplain but not the flat valley itself where deposition occurs.

Rivers create a wide, flat valley that is often flooded and builds up fertile soils through repeated sediment deposition. This broad, level area is called the flood plain. When floods spill over the banks, they spread fine silt and clay across the valley floor, leaving behind alluvium that makes the land especially fertile for farming. That combination of a wide, flat valley and regular flooding explains why this feature is the flood plain.

Interlocking spurs are produced by a river weaving around a series of ridges in the upper valley, not the flat, flood-prone surface. A gorge is a steep-sided, narrow valley formed by intense downcutting, not a wide floodplain. A meander is a bend in a river’s course, typically within a floodplain but not the flat valley itself where deposition occurs.