Question

How many type of drainage pattern form by river?explain each.

Answer 1

#.Dendritic drainage pattern :-
This pattern of flow of streams and rivers develops in an area which comprises rocks with a uniform structure. The direction taken by the river and its tributaries is largely dependent on the slope. The water channels thus flow through the valleys between the ridges and spurs resulting in the river and its tributaries making a pattern that resembles a tree and its branches.

#.Trellised drainage pattern:
It is a rectangular shaped drainage pattern that develops where bands of rocks vary in resistance. In some areas there are alternate bands of hard and soft rocks.

#.Radial drainage pattern:
It is a 'spoke- like' pattern. Water channels flow from around the top if a hill or the top of a dome type feature in numerous directions like the spokes of a wheel. Such a pattern of drainage may develop from a volcano or conical mountain.

Answer 2

1.1Accordant drainage patterns1.1.1Dendritic drainage pattern1.1.2Parallel drainage pattern1.1.3Trellis drainage pattern1.1.4Rectangular drainage pattern1.1.5Radial drainage pattern1.1.6Centripetal drainage pattern1.1.7Deranged drainage pattern1.1.8Annular drainage pattern1.1.9Angular drainage pattern1.2Discordant drainage patterns