V-shaped valley is formed as a result of vertical erosion of a river which makes it deeper with step sides because the water as active in following

Ox-blow lakes are crescent-shaped lakes formed by running water flowing through a meander neck. It is formed at the lower course of a river

Meanders are found at the middle course of a river network

Artificial embankment is a long artificial mound of stone or earth, built to hold back water