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← HistoryWhich outcome accelerates bronze degradation when artifacts are buried in sulfur-rich Mesopotamian soil?
A)Formation of brittle copper sulfides✓
B)Electrolytic corrosion from soil salinity
C)Oxidation due to trapped air pockets
D)Differential grain boundary corrosion
💡 Explanation
When bronze is exposed to sulfur, sulfidation corrosion accelerates because copper reacts, forming copper sulfide, which is brittle and prone to cracking, leading to structural weakening. Therefore, formation of copper sulfides results, rather than electrolytic corrosion oxidation, or grain boundary corrosion, which require chloride, oxygen, or specific alloy structures respectively.
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