Fact 1: Soil erosion means soil loss through wind.

Fact 2: Soil erosion is a serious problem in production agriculture.

Given the two facts above, answer the question "What can cause serious problems for production agriculture?" with the following options: 
- wind
 - rabies
 - fungi
 - mold
 - Acids
 - fire
 - mildew
 - mines


 

 wind        