Question

The world's longest river Nile is situated on which continent?
A) Asia
B) Europe
C) America
D) Africa

Answer 1

Hint: It is the second-largest and second-most populous continent in the world, after Asia. At nearly 30.3 million km2, including neighboring islands, it occupies 6% of the total surface area of the Earth and 20% of its land area. It accounts for about 16 percent of the world's human population, with 1.3 billion inhabitants as of 2018. This continent is surrounded by the Mediterranean Sea to the north, the Suez Isthmus and the Red Sea to the northeast, the Indian Ocean to the southeast and the Atlantic Ocean to the west

Complete answer:
Option A Asia, is the incorrect answer. In China, the Yangtze River is the longest river in Asia, the third longest river in the world and the longest river in one country to flow entirely.
Option B Europe, is the incorrect answer. At 3690 kilometers, the Volga River is the longest river in Europe and the 16th in the world.
Option C America, is the incorrect answer. With a total of around 3,500,000 miles of waterways, the United States of America has over 250,000 rivers. The Missouri River is the longest stream in the U.S.
Option D is Africa. In northeastern Africa, the Nile is a major north-flowing river and is the longest river in Africa and the world's longest river in dispute, as the Brazilian government says the Amazon River is longer than the Nile. The Nile is about 6,650 km (4,130 mi) long and eleven countries are covered by its drainage basin. The Nile is the main source of water for Egypt and Sudan, in particular.

Hence the correct answer is option D.

Note:From Giant Springs to the Missouri River near Great Falls, Montana, United States, the Roe River flows. At its longest constant point, the Roe River is only 201 feet (61 m) long, and was named as the World's Shortest River by the World Records Guinness Book before Guinness abolished the shortest category of river. The Roe is about 6–8 feet (1.8–2.4 m) deep towards its mouth.