The picture given below shows the biggest delta in the world .Write a note on it-giving details on its formation,region it is occupying and its rich bio-diversity
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The Ganges Brahmaputra Delta, also named Ganges Delta, Sunderban Delta or Bengal Delta is situated in Asia where the Ganges and Brahmaputra rivers discharge into the Bay of Bengal. It is, with a surface area of some 100.000 km2, the world's largest Delta. Approximately two-thirds of the delta is in Bangladesh, the rest constitutes the state of West Bengal, India.
The Ganges–Brahmaputra Delta from space The Ganges Delta is the floodplain of three great rivers: the Ganges, the Brahmaputra and the Megna. Together, these three rivers drain a catchment of about 1.72 million km2, at the southern side of he Himalaya.
The Ganges Delta is among the most fertile regions in the world. Along the coast, he width of the delta is approximately 350 km. The distance from the confluence of the Brahmaputra and the Ganges to the coast is some 250 km. Downstream the confluence, the river is named Padma. About halfway the Padma, the Meghna joins.
With some 130 million inhabitants, the Ganges delta belongs to the most densely populated areas in the world (1.300 inh/km2).
Characteristics :
Continent: Asia
Location: 23°06’N, 90°21’E
Basin of deposition: Bay of Bengal
Delta area (km2): 105641
Number of river mouths: 8
Spring Tide (m): 3.63
Major Cities: Dhaka, Kolkata
Basin area (10^3 km2): 1664.7
River length (km): 3902
Average rainfall (mm/y): 1474
Maximum rainfall (mm/y): 2269
Minimum rainfall (mm/y): 341
Annual average discharge (m3/s): 29692
Maximum discharge (m3/s): 80984
Minimum discharge (m3/s): 6041