C. a delta. Because a delta is the only one of those choices to where it is formed at the mouth of a river
The statement is - True.
Mount Elbert has an elevation of 4,401 meters (which is almost three miles), and it has a prominence of 2,772 meters. It is the highest summit of the Rocky Mountains of North America. Mount Elbert also represents the highest point of the state of Colorado, and it is also the highest point of the Mississippi River drainage basin which covers 41% of the USA's territory. More specifically this peak is in the Rocky Mountains Range, Sawatch Range, Southern Rocky Mountains Range.
Settlers who grew just enough crops to support likely lived in the North.
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Flooding can affect rivers because river flooding causes things to be picked up from the streets and pulled back into the water. So It affects the water quality and if anything dangerous to the fish and water life gets in the water it will mess up their life system. Hope this helped a little bit. :)