EVERYDAY SCIENCE

Detailed explanation-1: -Mechanical Weathering Mechanical weathering, also called physical weathering and disaggregation, causes rocks to crumble. Water, in either liquid or solid form, is often a key agent of mechanical weathering. For instance, liquid water can seep into cracks and crevices in rock.

Detailed explanation-2: -Physical weathering (also called mechanical weathering) happens when physical forces repeatedly act on the rock. One example is rocks tumbling over one another, knocking off pieces from one another. This often happens in a river, desert or hillside.

Detailed explanation-3: -Chemical weathering weakens rocks making them more prone to breaking physically, while mechanical weathering increases the surface area of the sediment, which increases the surface area that is exposed to chemical weathering.

Detailed explanation-4: -Freeze-thaw weathering or Frost Wedging. Exfoliation weathering or Unloading. Thermal Expansion. Abrasion and Impact. Salt weathering or Haloclasty.