Concept:Nigerian rivers have certain physical features, but not all listed options are true characteristics.
Explanation:Seasonal flooding is common in Nigerian rivers due to alternating wet and dry seasons.
Rapids and cataracts occur where rivers cross hard rocks and plateaus, especially in northern Nigeria.
Shallowness is typical because many rivers reduce in volume during the dry season.
However, "presence of misfit" is not a known characteristic of Nigerian rivers.
A misfit river is a stream too small for its valley, and this does not describe Nigerian rivers.
Answer:D. presence of misfit