Answer:
Thermal heating and cooling
Explanation:
This process described results from thermal heating and cooling as a mechanism of mechanical weathering of rock bodies.
- It is often more pronounced in the arid regions of the world where there is a significant difference between day and night temperatures.
- With mechanical weathering, rocks are broken down into fragments by physical disintegration.
- During the day, the high temperature causes the rock to expand significantly.
- At night, the rock contracts and on the long run, joints and fractures begins to appear on the rock surface.
