Why does detrital matter remain suspended in the water of rivers?
How is the coarse and fine sediment separated?
Why do river currents extend some distance into the sea?
What effect does this have in distributing the sediment which the rivers furnish?
Upon what does the transporting power of marine currents depend?
When a river enters a lake, why is its sediment deposited?
Describe the effect.
When is sediment deposited in the beds of rivers?
Describe the effects of this deposition.
Where is most of the sediment deposited?