You are presented with the question "Sediment is dropped at the mouth of a river by water when what happens?" and the following answer choices: 
- Destroy bridges
 - erosion
 - global warming
 - rivers slow
 - flooding
 - contamination
 - massive damage
 - storms

Now knowing that adelta is formed by deposition of sediment at the mouth of a river by water fanning out and when the river slows, it drops the sediment in a wide fan, a delta, choose the best answer.


 

    rivers slow     