Which of the following reasons BEST explains why African rivers are not very navigable?

Assessment: JAMB UTME - Geography - 1991 Subject: Geography

Question 1 Report

Which of the following reasons BEST explains why African rivers are not very navigable?
Answer Details
The reason that BEST explains why African rivers are not very navigable is that most of the river courses are interrupted by rapids. Rapids are areas of a river where the water flows rapidly over rocks, causing turbulence and making navigation difficult or impossible. Since many African rivers have rapids along their courses, it makes navigation challenging and often dangerous. While low volume of water, short length of rivers, and seasonal rivers can also affect navigability to some extent, the presence of rapids is the main reason why African rivers are not very navigable.

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