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

Fact 2: Most beaches are of white coral sand.

Given the two facts above, answer the question "Sand can be formed by which process?" with the following options: 
- Continents drifting
 - mechanical waves
 - Photosynthesis
 - Sand Casting
 - movement of tectonic plates
 - Cellular Respiration
 - evaporation
 - Mechanical Weathering


 

        Mechanical Weathering 