Answer
1. Frost Wedging: Water enters cracks in rocks, freezes, and expands, causing the rock to break apart.
2. Thermal Expansion: Repeated heating and cooling of rocks cause them to expand and contract, leading to cracking and disintegration.
3. Exfoliation: The outer layers of rocks peel away due to the release of pressure as overlying rocks erode, resulting in sheet-like layers or shells.
4. Abrasion: Rocks are physically worn down and broken into smaller pieces by the friction and impact of other rocks, water, wind, or ice.
Work Step by Step
Refer to the above answer.