1. Weathering: The process by which the rocks are weakened and broken is called ‘weathering’.
2. Erosion: The active wearing away of the earth’s surface by the moving agents such as water and wind is called erosion.
3. Gorge: A narrow valley with very steep slopes that are cut of hard rocks by the rivers is called a Gorge.
4. Canyon: A narrow chasm with steep, cliff walls cut into the earth by running water.
5. Meanders: Gentle turns like a snake made by the river in its flood plain are called meanders.
6. Glacier: Slow-moving of mass of ice is called Glacier.