This would be shallow rivers. They're the biggest obstacles by boat on the Congo River.
Hope this will help you!:)
Answer:
A stream in a bedrock valley located 5000 feet above ultimate base level that is draining a mountainous region in the headwater of a stream system would have a _____.
high gradient, and a narrow and shallow channel with no floodplain
Explanation:
A bedrock valley has no alluvium mantling the bedrock over which it flows. Alluvium (consists of sand, gravel, silt, clay, and gravel, as well as other organic matters) mantlings or coverings are usually developed in the lower part of the river with the formation of floodplains and deltas. They may also be deposited at lakes or river banks. Headwater streams deliver nutrients and other organic materials (e.g. fallen leaves) to downstream regions to sustain downstream aquatic life.
Out of the following choices, the following factors that the city planner should consider after what happened to New Orleans after Hurricane Katrina hit are the city's position near a large river or gulf, the city;s location near a deep water harbor, and the city's elevation above sea level.
The most important ones are Tema in Ghana, and the Greenwich section of London.