Question

river water carries sediment from mountains to oceans
rivers dry up, causing lakes to form

which best describes river erosion

Answer 1

River erosion is the process by which water and other erosive forces, such as wind and ice, wear away at the banks and bed of a river, carrying sediment from the mountains to the ocean. This process can cause the river to change its course, form new channels, and create features such as waterfalls, rapids, and gorges.