This specific process is called frost weathering or cryofracturing. It is a situation when Water collects in small cracks in a rock, then freezes. and caused the rock to crack and break off in pieces.
<h3>What is frost weathering?</h3>
Frost weathering is physical weathering that involves freezing and thawing of waters in an area with extremely cold weather. When water freezes its size expands and damages the area.
Its best example is when water collects in small in a rock then freezes. The expansion of the water while frozen causes the rock to break into pieces.
Therefore the Forst weathering is from of physical weathering.
Learn more about Frost weathering here:
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