Question

many rivers in africa are severely affected by seasonal flooding. additionally, the rivers tend to have a large amount of debris (wreckage, rubbish, or waste). the average elevation of the continent also means that rivers have falls and rapids. and, given the tropical location in some portions of africa, the conditions near rivers can be ideal for disease - spreading mosquitoes. the passage above best explains - why rivers are important to the economy of africa. how rivers have historically been used for transportation in africa. why rivers have not been as useful for transportation. the reasons for the geographic spread of cultural/ethnic groups in africa. clear all

Explanation:

The passage lists issues like seasonal flooding, debris, falls/rapids, and disease - spreading mosquitoes near African rivers. These factors contribute to why rivers have not been as useful for transportation. It doesn't focus on economic importance, historical transportation use in a positive sense, or cultural - ethnic spread.

Answer:

why rivers have not been as useful for transportation