Fact 1: Soil is formed by weathering.

Fact 2: Over time, the slow processes of weathering and erosion can turn large rocks into sand.

Given the two facts above, answer the question "What is formed by erosion processing large rocks?" with the following options: 
- cracks
 - crust
 - Newton
 - roots
 - pan
 - soil
 - potash
 - biome


 

      soil   