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← GeographyWhich outcome occurs within a glacial environment when differential stress exceeds ice strength along a pre-existing fault?
A)Crevasse formation and accelerated glacial flow✓
B)Increased CO₂ storage within englacial streams
C)Enhanced methane hydrate crystallization
D)Episodic permafrost thaw and methane release
💡 Explanation
Crevasse formation will trigger accelerated glacial flow where fault-induced stress concentrates, reducing ice strength because stress overcomes the resistance; therefore, substantial deformation occurs, rather than gas-related phenomena happening within the ice.
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