Fact 1: Soil is formed by weathering.

Fact 2: Erosion begins with the weathering, or breaking down, of rocks and soil.

Given the two facts above, answer the question "What is formed by the breaking down of rocks?" with the following options: 
- statues
 - soil
 - seeds
 - crust
 - earth
 - cracks
 - dirt
 - boulders


 

  soil       