Bangladesh has the highest number of rivers (about 700) and is known as the 'land of rivers'. Some major Rivers of Bangladesh are: Brahmaputra, Ganges, Suma, Atrai, Raidak, Mahananda, Teesta, Karnaphuli, Meghna and Bangshi among others.
Saudi Arabia
There are hundreds of dams on wadis in Saudi Arabia. Saudi Arabia is the largest country in the world with no rivers at 830,000 square miles.
As of 2021, the Amazon basin, located in northern South America, was the largest drainage basin in the world. The Amazon River and its tributaries drain an area nearly seven million square kilometers.
The Congo is the deepest river in the world. Its headwaters are in the north-east of Zambia, between Lake Tanganyika and Lake Nyasa (Malawi), 1760 metres above sea level; it flows into the Atlantic Ocean.
Yangtze River - China
With a length of 3,915 miles, the Yangtze River is the third longest river in the world.
Brazil, Colombia, Venezuela, Suriname, Guyana, French, Guiana, Bolivia, Paraguay, and Uruguay all have lengthy international river borders. The map above highlights in blue all of the international borders defined by large rivers.
Other such desert or dry climate countries without rivers include Kuwait, Oman, Qatar, the United Arab Emirate, and Yemen. In addition to these, Djibouti has no proper rivers, due mainly to its climate, and only has intermittent, seasonal small creeks which run through the mountains during the rainy seasons.
#1 World's Fastest River
The world's fastest river is the Amazon, which flows at an average speed of around 7 miles per hour. However, the river's speed can increase to around 10 miles per hour during high rainfall.
At the continental level, America has the largest share of the world's total freshwater resources with 45 percent, followed by Asia with 28 percent, Europe with 15.5 percent and Africa with 9 percent.
Of Australia's 439 rivers, many are small tributaries with relatively low and variable flows. Some rivers run out to sea while those in the driest areas flow inland to Lake Eyre.
Brazil. Brazil has the highest volume of renewable fresh water resources. It totals approximately 8,233 cubic kilometres. This actually accounts for 12% of the planets freshwater and 70% of this comes from the Amazon.
The Golden Triangle, as it is commonly known, is the spot where the borders of Thailand, Myanmar and Laos meet at the Mekong River.
Two great rivers run through China Proper. Two great rivers run through China Proper: the Yellow River in the north, and the Yangtze (or Yangzi ) River to the south. In fact, most of China Proper belongs to the drainage-basins of these two rivers. Both originate to the far west in the Tibetan Plateau.
The Mekong River is one of the world's great rivers. Covering a distance of nearly 5,000 km from its source on the Tibetan Plateau in China to the Mekong Delta, the river flows through six countries: China, Myanmar, Thailand, Lao PDR, Cambodia and Viet Nam.
Moreover, Russia has been estimated to have 4,525 cubic kilometres of renewable water resources, making it the country with the second-largest renewable water reserves in the world.
The United States of America is the top country by renewable groundwater in the world. As of 2020, renewable groundwater in the United States of America was 1,383 billion cubic meters per year that accounts for 12.96% of the world's renewable groundwater.
The Encyclopedia Britannica gives the length of the Nile as 6,650 kilometers (4,132 miles), to 6,400 kilometers (3,977 miles) for the Amazon, measuring the latter from the headwaters of the Apurimac River in southern Peru.
The Amazon might also be the world's longest river—depending on whom you ask. Most scientists believe the South American river is at least 4,000 miles (6,400 km) long—still shorter than the Nile, which is widely held to be the world's longest river at about 4,132 miles (6,650 km).
Not only is the Amazon River one of the longest rivers in the world, the Guinness Book of World Records currently lists it as the widest river in the world — measuring 11 kilometers (7 miles) at its widest point.