Question

what's the biggest obstacle to traveling by boat on the Congo river?

Answer 1

This would be shallow rivers. They're the biggest obstacles by boat on the Congo River.
Hope this will help you!:)

Answer 2

Answer:

C. shallow areas due to drought

Explanation:

• The congo river is the second largest river of Africa and has a length of about 4,700km and has a basin area of about 4,014,500 km square. The congo river is a major  transport route carries 86 million tonnes of the suspended sediments towards the Atlantic ocean and about 6% in the bed load. But in the dry season the river is unable to carry and deposit the load and thus forms a bigger obstacle as major rapids hence not navigable.