All these are the characteristic Nigerian rivers except
Answer Details
The characteristic that does not apply to Nigerian rivers is the "presence of misfit."
A misfit stream is a river that is too small to have eroded its valley to the same width as its floodplain. This can occur when tectonic uplift or glacial erosion creates a deep valley, but the river that flows through it is not large enough to fill the valley. As a result, the river appears to be flowing in a relatively large valley that is out of proportion to its size.
Nigerian rivers, on the other hand, are known for their seasonal flooding, development of rapids and cataracts, and shallowness. Nigeria has a tropical climate, and heavy rainfall during the rainy season causes many rivers to flood their banks. The flooding can lead to erosion, and as the river channels become narrower and deeper, rapids and waterfalls can form. Additionally, Nigerian rivers are generally shallow due to the region's geology, which consists mostly of relatively flat sedimentary rock.
In summary, Nigerian rivers do not exhibit the characteristic of a misfit stream, which is when the river is too small to have eroded its valley to the same width as its floodplain. Nigerian rivers are known for their seasonal flooding, development of rapids and cataracts, and shallowness.