Rivers shape the landscape over time through erosion and deposition. As rivers flow, they erode the land by carrying away sediment and wearing down rocks, creating features such as valleys, canyons, and riverbanks. The sediment carried by rivers is then deposited downstream, forming floodplains, deltas, and alluvial fans. This continuous cycle of erosion and deposition by rivers can gradually change the landscape over thousands or even millions of years.
