You are presented with the question "What is formed by deposition of sediment at the mouth of a water supply fanning out?" and the following answer choices: 
- a hurricane
 - soils
 - a delta
 - an ocean
 - soft soil
 - an island
 - detritus
 - spring

Now knowing that adelta is formed by deposition of sediment at the mouth of a river by water fanning out and rivers provide a water supply, choose the best answer.


 

   a delta      