You are presented with the question "What is soil made from?" and the following answer choices: 
- Rocks eroding
 - Ice melting
 - aqueous solution
 - Rocks being formed
 - organic molecules
 - calcite
 - Organic compounds
 - Trees falling

Now knowing that soil is formed by weathering and soil comes largely from weathering of rocks and erosion, choose the best answer.


 

 Rocks eroding        