Explanation

• The River Thames flows through southern England.
• It passes through the city of London.
• It is also sometimes called the River Isis in its upper course.
• It is the second-longest river in the United Kingdom.

Additional information:

Major Rivers in the UK:

• River Severn – longest (~354 km)
• River Thames – ~346 km
• River Trent
• River Mersey
• River Clyde

Last verified on 03-05-2026

Explanation

• The world second longest river is Amazon.

Additional information:

• South America: Amazon River – Longest river.
• United States (USA): Mississippi River – Longest river.
• Asia: Yangtze River – Longest river.
• Europe: Volga River – Longest river.

Last verified on 21-07-2026

Explanation

• The Nile River originates mainly from Lake Victoria (White Nile).
• It has two main tributaries: White Nile and Blue Nile.
• The Blue Nile starts from Lake Tana.
• Both rivers meet at Khartoum (Sudan).

Additional information:

• Total Length: ~6,650 km
• Outflow: Mediterranean Sea
• The Nile is the longest river in the world.
• Egypt is called the “Gift of the Nile” because it depends heavily on it.

Last verified on 31-03-2026

Explanation

• The Volga River is the longest river in Europe,
• It is with a length of approximately 3,531 km (2,194 miles).
• It flows entirely through Russia and empties into the Caspian Sea.

Additional information:

• Danube – 2,857 km (Flows through 10 countries)
• Ural – 2,428 km (Russia & Kazakhstan)
• Dnieper – 2,201 km (Russia, Belarus & Ukraine)
• Don – 1,950 km (Russia)

Last verified on 20-07-2026

Explanation

• Volga is the main river of Russia.
• As the longest river in Europe,
• Spans approximately 3,530 kilometers
• National river of Russia
• It flows through central Russia and drains into the Caspian Sea.
• It serves as a vital waterway for many of Russia's largest cities.

Last updated by NA on 16-07-2026

Explanation

• The Roe River is considered the smallest river in the world.
• It is located in Montana, United States.
• Its length is only about 61 meters (approx.).
• It flows between Giant Springs and the Missouri River.
• It is officially recorded in Guinness World Records.

Additional information:

• The Amazon River is considered the largest river in the world by water flow volume.
• It is located in South America, mainly Brazil.

Last verified on 25-06-2026

Explanation

• Amazon river in South America is the largest river in the world.
• Nile river in Africa is the longest river in the world.

Additional information:

Last verified on 10-06-2026

Explanation

• The main rivers in Egypt are the Nile River and its tributaries.
• The Nile is the longest river in the world at 6,650 km.
• It is located in Northeast Africa.
• It is the only river that flows from south to north.

Last verified on 29-05-2026

Explanation

• Baghdad is the city situated on the bank of the Tigris River in Iraq.
• It is the capital of Iraq.
• Founded by Caliph Al-Mansur in 762 CE.
• It was known as the “City of Peace” (Madinat al-Salam).
• It became a major center of learning during the Abbasid Caliphate.
• Today, it is one of the largest cities in the Arab world.

Last verified on 16-05-2026

Explanation

• The main tributary, the Congo River has a total length of 4,370 km.
• It is the only major river to cross the equator twice.
• It is the Second longest river in Africa.

Last verified on 16-05-2026