Which consequence emerges when rainfall overwhelms drainage capacity on a pre-Columbian hillside terrace system?

💡 Explanation

When rainfall exceeds drainage on terraces, hydrostatic pressure builds behind the retaining walls because saturated soil exerts far greater force than dry soil. Therefore, terrace wall collapse results, rather than nitrate depletion, germination failure, or salinization which require different soil chemistry and hydrological process.

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