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

Fact 2: On Earth, rocks are weathered by wind and water, creating soil and sand.

Given the two facts above, answer the question "What causes rocks to weather?" with the following options: 
- seasons
 - force
 - erosion
 - storms
 - water
 - heat
 - lightning
 - gas


 

     water    