It is a stream that drains in many patterns and directions
A stream discharges into a drainage basin. A drainage basin is a tract of land drained by a river and its tributaries
The relationship between bedrock structure and stream drainage patterns is primarily influenced by the geological features of the terrain. Stream channels often follow the paths of least resistance, which can be shaped by the orientation and type of bedrock, such as fractures, faults, or varying rock hardness. For instance, streams may meander around harder rock formations or align with geological structures like folds or faults, leading to distinct drainage patterns such as dendritic, trellis, or rectangular configurations. Consequently, the underlying bedrock significantly affects how water flows and carves the landscape.
Drainage density is typically calculated by dividing the total stream length in a watershed by the area of the watershed. This provides a measure of how well the drainage network is developed within the landscape. Low drainage density indicates less developed drainage patterns, while high drainage density suggests a more well-defined network of streams and rivers.
Drainage Basin
Dendritic drainage patterns
Dentritic drainage patterns are like tree branches and represent the most common drainage pattern
over a drainage divide
ganga
how diffrence in resistance of rock affect drainage patterns
Dendritic drainage patterns are tree like while trellis drainage patterns are formed when tributaries meet at right angles so they look like squares or rectangles.
When rain is heavy and land is inclined , it rolls into stream. It is known as runoff.
Narmada River