explain the main hydrological characteristics and processes which operate within rivers and drainage basins

•all the landforms are found within a drainage basin 

•tributary rivers

•when two tributaries join together, they form a confluence

•the area of land drained by a river is called it’s drainage basin

•the line that divides one river basin from another is called the watershed

          •as more tributaries join the main river channel, the discharge will increase

•there are also many processes which occur in a drainage basin 

          •evaporation: when liquid changes to a gas

          •overland flow: the movement of water across a land’s surface, not in rivers

          •through flow: the horizontal movement of water through soil

          •groundwater flow: the slow horizontal movement of water through underground permeable rocks

          •interception: precipitation that is temporarily stored on the surfaces of plant leaves.. etc.

          •infiltration: the downward movement of water into soil