Pick your answer from: + volcanoes; + wind; + sunlight; + years; + force; + soils; + earth; + animals;

Fact 1: Rocks interacting with wind over long periods of time causes weathering. Fact 2: Smaller rocks come from the breakage and weathering of bedrock and larger rocks. Given the two facts above, smaller rocks come from the interaction of bedrock with what over long periods of time?
Answer:
wind