| Rank | River system | Drainage area in miles² (km²) |
|---|---|---|
| 1 | Nile | 1,256,591 (3,254,555) |
| 2 | Amazon | 2,702,715 (7,000,000) |
| 3 | Yangtze | 694,984 (1,800,000) |
| 4 | Mississippi | 1,150,584 (2,980,000) |
What is the largest river basin in the world?
The Amazon Basin, in northern South America, is the largest in the world. The Amazon River and all of its tributaries drain an area more than 7 million square kilometers (about 3 million square miles).
Which is the second largest river basin in the world?
Congo basin, basin of the Congo River, lying astride the Equator in west-central Africa. It is the world’s second largest river basin (next to that of the Amazon), comprising an area of more than 1.3 million square miles (3.4 million square km).
How many river basins are in the world?
Rivers form a hydrological mosaic, with an estimated 263 international river basins covering 45.3% of the land surface area of the earth, excluding Antarctica. This graphic shows the locations of 26 of the world’s major river basins.
What is the largest river basin in the US?
Parts or all of 31 states plus two Canadian provinces drain into the Mississippi River, totaling 41% of the contiguous United States and 15% of North America. Along with being the largest U.S. drainage basin, the Mississippi also creates borders for 10 states.
Which river has largest catchment area in the world?
Twelve of them are classifled as major rivers whose total catchment area is 252.8 million heactare (M. Ha). Of the major rivers, the Ganga – Brahmaputra Meghana system is the biggest with catchment area of about 110 M.
Are oceans drainage basins?
Ocean Basins
Ocean drainage basins are comprised of large river, lake and other types of basins that ultimately drain into an ocean. … Water also flows to this basin from most of South America, central and Western Europe, and Sub-Saharan Africa. The seas of the Mediterranean also are part of the Atlantic Ocean basin.
Which is the second largest river basin in India?
The Godavari, with its sources from Trimbakeshwar, Maharashtra, is the river that has the second largest river basin in India.
What is the largest drainage basin in Canada?
Canada has five ocean drainage basins. The largest by far is the Hudson Bay basin; the smallest, situated in the southern Prairies, flows via the Missouri and Mississippi rivers into the Gulf of Mexico.
Which is the largest river basin in the world class 7?
The main river along with all its tributaries that drain an area forms a river basin or the catchment area. The Amazon Basin is the largest river basin in the world.
Which river has the largest basin in the India?
There are 20 river basins/draining areas, large and small, in India. The Ganga basin is the largest.
Which Indian River is known as song?
The national river of India — the Ganga has spiritual, economic, environmental and cultural importance in the country. It originates in the Gangotri glacier in the Himalayas and flows more than 2500 km into the Bay of Bengal. In terms of water flow, it is the third largest river in the world.
What is watershed mean?
Accordingly, “watershed is defined as any surface area from which runoff resulting from rainfall is collected and drained through a common point. It is synonymous with a drainage basin or catchment area. A watershed may be only a few hectares as in small ponds or hundreds of square kilometres as in rivers.
How deep is the Mississippi River?
200′
Which river is the longest tributary of the Mississippi River?
Missouri River, longest tributary of the Mississippi River and second longest river in North America. It is formed by the confluence of the Jefferson, Madison, and Gallatin rivers in the Rocky Mountains area of southwestern Montana (Gallatin county), U.S., about 4,000 feet (1,200 metres) above sea level.
How long is the Mississippi River?
2,318 mi