(a) Source of river Ganga is Gangotri glacier and the river enters the plains at Haridwar. (b) The distributaries are also subdivided into mini distributaries due to deposition of sediments over a large area near its mouth at the sea. This deposition over a large area results in a triangular shaped formation which is called Delta. Two Deltas in South Asia—(1) Ganga Brahamputra Delta, (2) Delta of Godawari. (c) Three reasons for the importance of the peninsular plateau : (i) The peninsular plateau has large deposits of metallic, non metallic and energy resources. (ii) North western part of it has fertile black soil. (iii) Rivers of western ghats are short and swift used for hydro-electricity.