The speed of the water flowing downhill will be affected by the and any structures

The speed of the water flowing downhill will be affected by the and any structures or topographical features in its path.
The
the water flows, the more erosion occurs.
Water flowing downhill moves and deposits sand at the bottom of the
river. The
the water flows, the more sand will be deposited at
the bottom. A delta at the mouth of a river forms in the same way.