Fact 1: Adelta is formed by deposition of sediment at the mouth of a river by water fanning out.

Fact 2: Alluvial deposits can form deltas where the river flows into a lake or ocean.

Given the two facts above, answer the question "What type of deposit fans out into the ocean?" with the following options: 
- coral reef
 - Loose
 - rocks
 - patch reefs
 - erosion
 - alluvial
 - loose soil
 - Sediment


 

      alluvial   