GEOLOGY

Detailed explanation-1: -There are two main types of physical weathering: Freeze-thaw occurs when water continually seeps into cracks, freezes and expands, eventually breaking the rock apart. Exfoliation occurs as cracks develop parallel to the land surface a consequence of the reduction in pressure during uplift and erosion.

Detailed explanation-2: -Mechanical or Physical Weathering Mechanical weathering includes processes such as water in cracks freezing and expanding, or changes in temperature that expand and shrink individual minerals enough to break them apart.

Detailed explanation-3: -Frost wedging is a form of physical weathering that breaks down rocks through the freezing and thawing process. First, water enters the rock through cracks and pores traveling deep within the rock. As the water freezes, it expands into the rock, causing the cracks and pores to grow.