Fact 1: Rocks interacting with wind over long periods of time causes weathering.

Fact 2: Limestone is the rock formed by calcite.

Given the two facts above, answer the question "What causes weathering when interacting with wind?" with the following options: 
- technology
 - soils
 - graptolites
 - loose soil
 - erosion
 - limestone
 - plants
 - apes


 

      limestone   