Question

What do you understand by drainage pattern ? Name any four drainage patterns formed by the rivers.CBSE Class IX Social Science SA (3 Marks)

Answer 1

The streams within a drainage basin form certain patterns, depending on the slope of land, underlying rock structure as well as the climatic conditions of the area. These are dendritic, trellis, rectangular, and radial patterns.

Answer 2

Drainage patterns are formed by the streams, rivers and lakes in a particular drainage basin. They are governed by the topography of the land whether a particular region is dominated by hard or soft rocks and gradient of land.

Drainage patterns formed by the rivers :

1) Dendritic drainage patterns.

2)Parallel drainage pattern.

3) Trellis drainage pattern.

4) Rectangular drainage pattern.