Study Fig. 4, which shows factors affecting movement of sediment load in rivers. [Figure 4]

1. (a)Choose either arable or pasture land use. How will your chosen land use cause sediment to reach the river?[2]
2. (b)Study Fig. 5, which shows a sketch map of a river channel where a dam has been constructed. [Figure 5] On Fig. 5 label using the given letters: • the dam wall (W) • where deposition will occur (D) • where erosion will occur (E)[3]
3. (c)(i)Which engineering method, from Fig. 4, has been used here? [Figure 6][1]
4. (c)(ii)Suggest how this engineering method has changed the movement of sediment in the river. Give a reason for your answer.[2]

This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.