In frost wedging, a crack expands when water . When the water it can seep into new fissures in the rock.

Answer 1

In frost wedging, a crack expands when water enters it and freezes. When the water freezes, it expands, exerting pressure on the walls of the crack. This pressure causes the crack to widen and deepen. As the ice melts, water can seep into new fissures created by the previous expansion, repeating the process and causing further fracturing of the rock. This continuous cycle of freezing, expansion, melting, and seepage gradually weakens the rock over time.