Mechanical And Physical Weathering In The Earth

Introduction:

Weathering is the mechanical and chemical hammer that breaks down and sculpts the rocks. it cause the disintegration of rock near the surface of the earth. Plant and animal life, atmosphere and water are the major causes of weathering, Weathering breaks down and loosens the surface minerals of rock, and thus should not be confused with erosion, which involves the movement of rocks and minerals by agents such as water, ice, snow, wind, waves and gravity and then being transported and deposited in other locations. There are two major classifications of weathering processes exist, the first one is physical weathering and the second on is chemical weathering; each sometimes involves a biological component. Mechanical or physical weathering is the process of breaking big rocks into little ones. This process usually happens near the surface of the planet. Temperature is an important effective in the land, which the cool nights and hot days always cause things to expand and contract. That movement can cause rocks to crack and break apart. Microbiology communities in the soil can also help to break the rocks apart by burrowing and digging through the ground. Another factor is roots and plants when they push into the rocks and break them apart. There are two main types of physical weathering: Freeze-thaw which occurs when water continually seeps into cracks, freezes and expands, eventually breaking the rock apart. And exfoliation which is occurs as cracks develop