Describe the following drainage patterns
i)Trellis drainage
ii) Dendritic drainage pattern

Answer:

i)-Develops in areas with alternating hard and soft rocks and where the land dips towards the same direction
-The main or consequent river has more erosive power hence cuts through the hard and soft rock
-The smaller tributaries(secondary consequent rivers) flow on the soft rocks and join the main tributary or river (subsequent river) at right angles

ii)-This pattern is shaped like a tree and its branches
-Its tributaries join the main river from many directions
-Tributaries join the main river at acute angles
-It develops in areas with uniform rock hardness and structure

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