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The refreezing of ice after the pressure on it is released is called:

AReformation
BRefrigeration
CRegelation
DRegistration
Answer & Solution
Correct answer: C. Regelation
1. Increased pressure lowers the melting point of ice. 2. Removing that pressure lets the water freeze again. 3. This phenomenon of refreezing is called regelation. 4. So the answer is regelation. _Source: syllabus Physics Part II, Ch 10 'Thermal Properties of Matter'_
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