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← GeographyWhich crustal outcome results when the stress exceeds frictional strength?
A)Earthquake along a transform fault✓
B)Volcanic eruption increases silica content
C)Subduction zone slab rollback accelerates
D)Continental rift valley propagation stalls
💡 Explanation
Movement becomes sudden instead of gradual because exceeding static frictional strength causes brittle failure/Elastic Rebound along the transform plate boundary; therefore, seismic energy is released, rather than gradual creep, as the fault unlocks.
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