the common features of the middle course of a river are?

The common features of the middle course of a river are interlocking spurs and meanders. In the middle course of a river, the gradient (slope) of the land is less steep than in the upper course. As the river flows through this area, it begins to meander, or curve back and forth in a zigzag pattern. The river erodes the outside banks of these meanders and deposits sediment on the inside banks, causing the meanders to migrate over time. The eroded material is transported downstream and deposited on the river banks, creating interlocking spurs. U-shaped valleys and flood plains are more commonly found in the lower course of a river where the gradient is very gentle and the river flows slowly towards the sea, depositing large amounts of sediment. V-shaped valleys and rapids, on the other hand, are more common in the upper course of a river where the gradient is steep and the water flows quickly over rocky terrain. Broad interfluves and distributaries are features associated with a delta, which is where a river meets the sea and deposits its sediment in a fan-shaped pattern.