Frost wedging is a form of physical weathering that breaks down rocks through the freezing and thawing process.
Physical weathering, also called mechanical weathering, is a process that causes the disintegration of rocks, mineral, and soils without chemical change.
The primary process in physical weathering is abrasion (the process by which clasts and other particles are reduced in size).
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 and Frost wedging takes place.
Therefore, Frost wedging is a form of physical weathering that breaks down rocks through the freezing and thawing process. Hence, Option (B) is correct
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