Rocks interacting with wind over long periods of time causes weathering, and smaller rocks come from the breakage and weathering of bedrock and larger rocks. Given these facts, smaller rocks come from the interaction of bedrock with what over long periods of time among the following options:
- volcanoes
 - wind
 - sunlight
 - years
 - force
 - soils
 - earth
 - animals


 

  wind       