Construction of a dam across a river is likely to cause which processes to occur upstream and downstream?

Question

Quizplus · Accepted Answer

The construction of a dam across a river is likely to block the flow of the river, creating a reservoir upstream. This can cause sediment to accumulate in the reservoir, leading to aggradation upstream. However, downstream of the dam, there may be a decrease in sediment load, leading to erosion. Therefore, the likely processes to occur upstream and downstream are aggradation and erosion, respectively. Therefore, choice C (Aggradation; erosion) is the best choice.

Construction of a Dam Across a River Is Likely to Cause