Firstly, there aren't all that many navigable rivers running to the sea from Africa's interior, and secondly, most of these rivers have rapids and waterfalls.
"Waterfalls and rapids"
you can see waterfalls on the internet but also in the rain forest and any place where there are many large rapids in a large rivers
Fall Line
A mature river is on a shallower slope and it doesn't have rapids or waterfalls.(Waterfalls: steep fall of water, as of a stream, from a height.Rapids: part of a river where the current is swift.)
A mature river is on a shallower slope and it doesn't have rapids or waterfalls.(Waterfalls: steep fall of water, as of a stream, from a height.Rapids: part of a river where the current is swift.)
Coast (ocean), rivers, lakes, waterfalls, rapids
Fall Line :)
There are waterfalls in most rivers.
Firstly, there aren't all that many navigable rivers running to the sea from Africa's interior, and secondly, most of these rivers have rapids and waterfalls.
A fall line is a place where the elevation of the land drops sharplycausing rivers to form waterfalls or rapids.
Without waterfalls and rivers, we woudn't have freshwater fish,plants.