Explanation:

 1.  A drainage pattern which looks like tree branches with lots of twigs is known as Dendritic drainage pattern. For example, the rivers of northern great plains.

 2. Trellis drainage pattern is formed when the primary tributaries of main rivers flow parallel to each other and secondary tributaries join them at right angles. For example, rivers in the upper part of the Himalayan region.

3.   A drainage pattern in which the main streams and their tributaries display many right-angle bends and exhibit sections of approx. the same length; it is indicative of streams following prominent fault or joint systems that break the rocks into rectangular blocks.  Example Vindhyan mountains.

4. Centripetal patterns are produced where drainage converges on a single outlet or sink, as in some craters, eroded structural domes with weak cores, parts of some limestone country, and enclosed desert depression. Thar desert.