You are presented with the question "Where do plains get soil from?" and the following answer choices: 
- earth
 - hurricanes
 - Sediment
 - ocean
 - canyons
 - wind
 - climate
 - floods

Now knowing that when a river floods , that river deposits soil in flood plains and when the river is full, it floods into the flood plain and leaves behind fertile soil, choose the best answer.


 

        floods 