River transport their load by four processes.
1)TRACTION
Large particles such as pebbles and boulders roll and slide along the river bed.
2) SALTATION
Large particles such as gravels and coarse sand are lifted and then dropped again so that they bounce along the river in a series of hops.
3)SUSPENSION
Smaller particles such as clay, silt and fine sand are carried along without touching the river bed. Materials carried in suspension usually form the greatest part of the total river load.
4) SOLUTION
Dissolved materials containing minerals such as calcium and sodium are carried in the water. They cannot be seen by naked eye.
