Question

The ratio of the total stream length cumulated for all orders in the basin to the total area of the basin is called as:

• A. basin ratio
• B. drainage pattern
• C. drainage density
• D. texture ratio

Hint:

Drainage density = stream length ÷ basin area; higher value = denser stream network.

Answer 1

The Correct Option is C

Drainage density is defined as the total length of all streams and rivers in a drainage basin divided by the total area of the drainage basin. It reflects how densely or sparsely streams are distributed across the terrain and is a key indicator in hydrology and geomorphology. \[ \text{Drainage Density} = \frac{\text{Total stream length}}{\text{Basin area}} \]