Fact 1: Being exposed to wind can cause erosion of soil.

Fact 2: On bare, dry soil, wind erosion can remove significant quantities of topsoil.

Given the two facts above, answer the question "What enhances the effects of erosion?" with the following options: 
- less wind
 - dry soil
 - coastlines
 - flooding
 - rivers
 - streams
 - increase in top soil
 - mulch


 

  dry soil       