geography7

This happens when rocks disintegrate into large blocks and other smaller fragments and particles without changing any of their constituent minerals. Physical or mechanical weathering are caused by these agents: Expansion – This leads to exfoliation. Crystal growth or frost action – This leads to block disintegration in temperature latitudes as well as on high …

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Physical or Mechanical Weathering. Chemical Weathering Biological Weathering

Weathering is defined as the gradual disintegration of rock materials by climatic or biological forces. It can also mean the process of physical break down or the chemical decomposition of rocks by the action of weather.