Which engineering challenge delayed completion of the original Panama Canal locks?

💡 Explanation

When constructing the Panama Canal, heavy rainfall and unstable geology caused frequent landslides that blocked the canal channels, slowing progress. Therefore, landslides presented a major engineering challenge, rather than excavation machinery, seismic events, or concrete techniques which presented secondary issues.

• Which drawback limited the effectiveness of Roman torsion artillery during prolonged sieges in damp climates?
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