What landforms identify the rivers age?

Answer 1

how high the water is or how wet the bank is

Answer 2

Some landforms that can help identify a river's age include meanders, oxbow lakes, and river terraces. Older rivers tend to have more pronounced meanders and oxbow lakes, formed as the river meanders and changes course over time. River terraces, which are flat, elevated surfaces alongside a river, can also indicate an older river as they are often remnants of former floodplains.