Question

Q. Consider the following statements:

Which of the following drainage patterns is described above?

• A. Trellis Pattern
• B. Dendritic pattern
• C. Centripetal Pattern
• D. Radial Pattern

Answer 1

The correct option is B Dendritic pattern

Explanation:

Drainage pattern refers to a design that a river and its tributaries form together from its source to its mouth.

Dendritic pattern:

1. Drainage pattern appearing like an irregular tree branch is a dendritic pattern.
2. It develops in a terrain that has uniform lithology, and where faulting and jointing are insignificant.
3. River Godavari, Mahanadi and Kaveri are its examples.

Trellis Pattern:

1. In the Trellis pattern, the primary tributaries of rivers flow parallel to each other and secondary tributaries join them at right angles.
2. It develops where sedimentary rocks have been folded or tilted and then eroded to varying degrees depending on their strength.
3. Rivers in the Old fold mountains of the Singhbhum region (Chotanagpur Plateau) serve as its examples.

Radial Pattern:

1. In a radial pattern, the streams radiate outwards from a central high point.
2. Rivers like Narmada, Son and Mahanadi originating from Amarkantak Hills flow in different directions and are good examples of the radial pattern.

Centripetal Pattern:

1. Similar to the radial drainage system, with the only exception that radial drainage flows out while centripetal drainage flows in from all directions in a lake or depression.
2. Streams of Ladakh, Tibet, and the Bagmati and its tributaries in Nepal are its examples.