You are presented with the question "Weathering causes what to become deeper and wider?" and the following answer choices: 
- a landslide
 - Sediment
 - a mountain
 - a volcano
 - soils
 - rock
 - flooding
 - a river

Now knowing that erosion causes a river to become deeper and wider and weathering and erosion continue to shape it today, choose the best answer.


 

        a river 