Question

Which river has the largest river basin in the world?
A) Nile
B) Amazon.
C) Brahmaputra
D) Mississippi

Answer 1

Hint: A river basin is the part of land drained by a river and its tributaries. Streams, wetlands, lakes are part of a river basin. Amazon is one of the two longest rivers in the world. It is longer than the Nile.

Complete answer:
The Amazon basin is the part of South America that is drained by the Amazon River and its tributaries. The basin covers six countries : Brazil, Columbia, Peru, Ecuador, Bolivia, Venezuela, Most of the basin is located in Brazil.
The Amazon River begins in Andes Mountain and its main tributary is the Maranon River in Peru also the Amazon system transports the largest volume of water than any other river system. Most of the Amazon basin is covered by the Amazon rainforest which is the largest rainforest in the world.
Importance of the amazon river basin:
I. The Amazon River basin is an important source of natural resources for economic development.
II. It contains the world’s largest known reserves of bauxite.
III. Industries within the basin are some of the largest suppliers of steel and iron to International markets.

Hence, the correct answer is option (B).

Note: 

Mississippi River: The Mississippi River is the second-largest drainage system and also the second-longest river on the North American continent.
Nile river: The Nile is the longest river in Africa and the disputed longest river in the world, is a major north-flowing river in northeastern Africa.
Brahmaputra river: The Brahmaputra river called Tsangpo in Tibet, Dihang river in Arunachal Pradesh, Dilao in Assam which flows through India, Tibet, and Bangladesh.