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The Amazon River (UK: / ˈ æ m ə z ən /, US: / ˈ æ m ə z ɒ n /; Spanish: Río Amazonas, Portuguese: Rio Amazonas) in South America is the largest river by discharge volume of water in the world, and the longest or second-longest river system in the world, a title which is disputed with the Nile. [3] [21] [n 4]
It can be thought of as a list of the biggest rivers on Earth, measured by a specific metric. For context, the volume of an Olympic-size swimming pool is 2,500 m 3 (88,000 cu ft). The average flow rate at the mouth of the Amazon is sufficient to fill more than 83 such pools each second.
In particular, there seems to exist disagreement as to whether the Nile [3] or the Amazon [4] is the world's longest river. The Nile has traditionally been considered longer, but in 2007 and 2008 some scientists claimed that the Amazon is longer [ 5 ] [ 6 ] [ 7 ] by measuring the river plus the adjacent Pará estuary and the longest connecting ...
Indonesia's second largest river after the Kapuas. [3] 3 Sepik: Papua New Guinea Indonesia: 1,126 kilometres (700 mi) 80,321 square kilometres (31,012 sq mi) 5,000 cubic metres per second (180,000 cu ft/s) 157.7 cubic kilometres (37.8 cu mi) Pacific Ocean: Often regarded as largest completely pristine river system in the world [4] 4 Pechora: Russia
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The Bahr al Ghazal's drainage basin is the largest of any of the Nile's sub-basins, measuring 520,000 square kilometers (200,000 sq mi) in size, but it contributes a relatively small amount of water, about 2 m 3 /s (71 cu ft/s) annually, because tremendous volumes of water are lost in the Sudd wetlands.
All basins larger than 400,000 km 2 (150,000 sq mi) are included as well as selected smaller basins. It includes drainage basins which do not flow to the ocean ( endorheic basins ). It includes oceanic sea drainage basins which have hydrologically coherent areas (oceanic seas are set by IHO convention ).
The Mississippi River has the world's fourth-largest drainage basin ("watershed" or "catchment"). The basin covers more than 1,245,000 square miles (3,220,000 km 2), including all or parts of 32 U.S. states and two Canadian provinces.