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Rivers and continental crust to continental crust.
They don't. Sediments can make a river more shallow.
Erosion.
southeast
Since human appeared, the amount of sediments carried by rivers has increased dramatically
Most rivers have eroded and Deposited sediment.
yes
Sediments.
The force that is responsible for moving sediments in a river is the current.
From rocks in rivers and lakes and when the rocks break up over time the sediments inside the rocks go into the rivers and lakes and overtime into the water supply.
A delta is formed.
Rivers can change the landscape through erosion, transportation of sediments, and deposition. Over time, rivers can carve out valleys, create deltas, and form floodplains. Their continuous movement of water and sediments shapes the land around them.