Fact 1: Mechanical weathering is when rocks are broken down by mechanical means.

Fact 2: Mechanical weathering produces detritus.

Given the two facts above, answer the question "What is formed when rocks break down?" with the following options: 
- plants
 - clouds
 - sand
 - coastlines
 - detritus
 - deltas
 - water
 - alluvial


 

     detritus    