The OB River, like many rivers, can exhibit different drainage patterns based on its geological and topographical context. Typically, a trellis pattern forms in areas with alternating layers of resistant and less resistant rock, while a dendritic pattern appears in regions with uniform materials. Without specific geological details about the OB River, it's challenging to definitively categorize it as one or the other. However, observing its flow and surrounding landscape would provide clearer insight into its drainage pattern.
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It is Dendritic
The nile is trellis
I would say Trellis because it doesn't look dendritic, but I can't be sure.
i'm not sure. I think it's a dendritic pattern
both
I don't know about 'treillis' rivers, but the Loire river seems to me to be dendritic (in the sense of arborescent)
The Amur River features dendritic drainage. This pattern of river system resembles the branching of tree roots and is common in areas with homogenous rock structures, where water flows in a branching pattern towards lower elevations.
trellis as the tributaries meet at approximately right angles
The Mississippi river is a dedentric drainage
The Amazon River is an example of dendritic drainage, which resembles the branching pattern of tree roots. Dendritic drainage patterns are common in areas with uniform rock structure and slope, where rivers and streams flow in multiple directions.
Dendritic because the rivers cross a gradual slope over one basic type of rock.