Here's how it works:
* Heating: When rocks are exposed to sunlight, they absorb heat and expand.
* Cooling: At night, the rocks cool down and contract.
* Expansion and Contraction: This repeated expansion and contraction puts stress on the rock.
* Fracturing: Over time, these stresses can cause the rock to crack and eventually break apart.
This process is particularly effective in areas with large temperature swings between day and night.