Question 1

Which of the following terms describes the network of river channels in a particular area?

Accepted Answer

The correct option is Drainage system. A drainage system refers to the origin and arrangement of river channels in a specific geographic area, influenced by the topography, geological structure, and amount of water flow.

Question 2

What is the catchment area of a large river called?

Accepted Answer

The correct option is River basin. The entire area drained by a river and its tributaries is known as a river basin, which is typically large in scale compared to a watershed.

Question 3

What separates small drainage basins from one another?

Accepted Answer

The correct option is Watershed. A watershed is a smaller area drained by a small river and its tributaries, separated from other basins by an elevated boundary known as a water divide.

Question 4

Which drainage pattern resembles the branches of a tree?

Accepted Answer

The correct option is Dendritic. The dendritic drainage pattern develops on uniformly weathered rock and resembles the branching pattern of tree roots.

Question 5

When rivers discharge their waters from a central high point in all directions, the pattern is called:

Accepted Answer

The correct option is Radial. The radial drainage pattern develops on a dome or volcanic cone where streams flow outward in all directions from a central peak.

Drainage System — NCERT Class 11 Geography Important Questions & Revision Notes