Question

Mechanical weathering blank

Answer 1

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:

1. Pressure release on rock
2. Frost action
3. Thermal expansion and contraction.
4. Alternate wetting and drying
5. Salt crystal growth
6. Biological activities