Which risk increases during prolonged, intense rainfall on steeply terraced agricultural land in the pre-Columbian Andes?

💡 Explanation

Terrace walls experienced hydrostatic failure because excessive water saturates the soil, increasing pore pressure behind the retaining structures; therefore the retaining wall catastrophically collapses, rather than experiencing nutrient deficiencies given the short time scale.

• Which outcome occurred when ancient Roman roadbeds experienced increased groundwater saturation?
• Which reaction limits bronze implement durability in submerged Mesopotamian archaeological sites?
• Which risk significantly increased when early aqueducts transitioned to high unsupported stone arches?
• Which consequence accompanied Norse longship designs experiencing hogging?
• Which risk increased during Inca wall construction at Sacsayhuamán involving imperfect ashlar stones?
• Which outcome predictably occurs when the reverberatory furnace roof collapses during the late bronze age?