Which functional degradation was accelerated by hull sheathing practices developed for 18th-century ships?

💡 Explanation

Sheathing with copper (or other dissimilar metal) resulted in rapid galvanic corrosion because iron bolts became sacrificial anodes in seawater, therefore weakening the hull; this mechanism isn't biological fouling or simple uniform rotting, rather than uniform material behavior.

• Which risk increased in early Mesoamerican maize agriculture via genetic selection for larger kernels on the central cob?
• Which risk significantly increased if Mesopotamian terraces, part of an early irrigation system, exceeded carefully stepped construction limits during use?
• During a sudden deluge, which failure risks destabilization of a Mesopotamian ziggurat's structure?
• Which enabling innovation caused ancestral Puebloans in the southwestern US to cultivate drought-resistant maize in arid environments?
• Which outcome resulted from inconsistent steel tempering during mass-produced Han dynasty crossbow triggers?
• Which risk increases when a wooden sailing ship's hull undergoes cyclical wetting and drying?