Answer:
Slumping is the process that has a big influence on the river channel, as it can change its flow and volume.
Step-by-step explanation:
Slumping happens when the erosion moved the bottom of the valley. This is the ground moving towards down when the rocks and mass of ground are moving downhill. This process influences the river, as the rock is, for example moving down, and the water runs into the rock, the water will go around the rock and that way change the flow.