EVERYDAY SCIENCE

Detailed explanation-1: -Mechanical weathering involves mechanical processes that break up a rock: for example, ice freezing and expanding in cracks in the rock; tree roots growing in similar cracks; expansion and contraction of rock in areas with high daytime and low nighttime temperatures; cracking of rocks in forest fires, and so forth.

Detailed explanation-2: -The following are the types of mechanical weathering: Freeze-thaw weathering or Frost Wedging. Exfoliation weathering or Unloading. Thermal Expansion.

Detailed explanation-3: -What Are the Types and Examples of Mechanical Weathering? In general, geologists identify 5 main types of mechanical weathering: Thermal expansion, frost weathering/wedging, exfoliation, abrasion, and salt weathering.

Detailed explanation-4: -The decrease in pressure that results from removal of overlying rock. Freezing and thawing of water in cracks in the rock. Formation of salt crystals within the rock. Cracking from plant roots and exposure by burrowing animals.