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Which outcome arises from differential aeration on submerged bronze components of Mesopotamian irrigation systems?

A)Increased structural intergranular corrosion
B)Formation of protective patina layers
C)Elevated hydrogen embrittlement risk
D)Enhanced anodic electrochemical protection

💡 Explanation

Differential aeration on submerged bronze structures triggers oxygen concentration cell corrosion because areas with less oxygen become anodic, leading to selective dissolution of the bronze alloy therefore increasing intergranular rather than protective layers since there is not uniform aeration profile.

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