- Rain causes erosion
- Erosion decreases the amount of nutrients in soil
- Hence, rain can decrease the amount of nutrients in soil

- Rain can decrease the amount of nutrients in soil
- Decreasing something can cause something to be removed
- Therefore, nutrients in soil can be removed by  rain

- Nutrients in soil can be removed by  rain
- Removing something is a kind of change
- Rain is a kind of natural process
- Hence, an example of a soil change caused by natural processes is nutrients in soil being removed by rain

Therefore, an example of a soil change caused by natural processes is nutrients in soil being removed by rain
[Question]Soils change both through natural processes and as a result of human activity. Which of the following soil changes is due only to natural causes?
[Context]- Removing something is a kind of change 
- Rain causes erosion 
- Erosion decreases the amount of nutrients in soil 
- Decreasing something can cause something to be removed 
- Rain is a kind of natural process