Which process limited terrace effectiveness in Andean potato cultivation?

💡 Explanation

Erosion caused terraces to degrade and lose structure because gravity-driven soil loss exceeded natural replacement. The terraces could not effectively retain soil due to surface runoff, therefore agricultural yields declined rather than being maximized with ideal terrace geometry.

• Across Pre-Columbian agriculture, increased soil salinity risked crop production during peak summer seasons; which hydrological mechanism offered a robust solution?
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• Which structural risk increases when improperly seasoning timbers?
• Which outcome occurred if pre-Columbian drainage canals failed?
• Which increased constraint results when mortar dries excessively quickly within historical stone arch construction?
• Which outcome results on a 1770s-era wooden ship when differential plank expansion concentrates stress?