Answer:
Explanation:
Mechanical weathering is the physical disintegration of rocks into chunks and bits.
Weathering is the physical and chemical disintegration of rocks to form sediments and soils.
- Mechanical weathering is also known as physical weathering.
- The sole aim of mechanical weathering is to increase the surface area of rocks so that chemical weathering will be more effective.
- Mechanical weathering is made possible by:
- Pressure release on rock
- Frost action
- Thermal expansion and contraction.
- Alternate wetting and drying
- Salt crystal growth
- Biological activities
