Fact 1: The surface of a beach is formed by mechanical weathering.

Fact 2: Beaches Anymore Sand is one of the most common materials on the earth's surface.

Given the two facts above, answer the question "What process creates sand?" with the following options: 
- Water expanding
 - beach
 - evaporation
 - friction
 - silicon dioxide
 - weathering
 - dunes
 - rainfall


 

      weathering   