You are presented with the question "What is a beach formed by?" and the following answer choices: 
- movement of tectonic plates
 - heat change
 - mechanical weathering
 - By coral exoskeletons
 - seasonal changes
 - patch reefs
 - sedimentation
 - Nurseries of the ocean.

Now knowing that the surface of a beach is formed by mechanical weathering and sandy and dusty surfaces get hotter during the day, like beach sand, choose the best answer.


 

   mechanical weathering      