It can cool it off and warm it if needed also it keeps it moist
Africas second longest river is the congo.
The River Nile in Africas.
The Mississippi.
Amnok RiverThe longest river is the Amnok River which flows for 790 kilometres (491 mi)
The second largest River in North America is the Yukon River witch flows northwest Canada to the Beaufort Sea
The world's longest river is the Nile at 6,693 km (and it flows north).
The Second longest river in Italy is the Adige. It flows in the north-west from the Alps to the Adriatic Sea. It is 410 km (250 miles) long.
The Mississippi River is one of the longest in the US, and flows from northern Minnesota south to the Gulf of Mexico.
Canada's longest river is the Mackenzie River in the Northwest Territories. The Mackenzie flows from Great Slave Lake north to the Arctic Ocean.
The Yukon River flows approximately 2,000 miles through Alaska and Canada. It is one of the longest rivers in North America.
Missouri flows in Mississippi which is the longest
The Mississippi River flows through Memphis. It is one of the longest rivers in North America and an important waterway for transportation and commerce.