Which risk increased when ancient Mesopotamian ziggurats used bronze ground rods for lightning protection?

💡 Explanation

When bronze ground rods contacted soil, electrochemical corrosion occurred because dissimilar metals in a moist, conductive environment form galvanic cells, causing the bronze to oxidize and degrade. Therefore electrolytic corrosion increases, rather than fire risk, weakening structural components or embrittlement which require distinct conditions and mechanisms related to heat or rapid stress.

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