Multiple choice

What is the area drained by a river called?

  1. Bay

  2. Basin

  3. Isthmus

  4. Strait

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A river basin is the entire geographical area drained by a river and its tributaries. All water falling within this area eventually flows into the main river through its network of tributaries. Bay is a body of water partially enclosed by land, isthmus is a narrow strip of land connecting two larger areas, and strait is a narrow passage of water connecting two larger bodies.