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← GeographyWhich process dominates at higher elevations, accelerating weathering?
A)Ice wedging mechanical fragmentation✓
B)Chemical hydration and solution
C)Bioturbation from deep roots
D)Oxidation of iron substrates
💡 Explanation
Ice wedging causes fragmentation because water expands when it freezes in rock fissures, therefore, it dominates in colder, higher elevations rather than chemical processes which need higher temperatures.
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