Which mechanical risk increased for terraces after long abandonment?

💡 Explanation

Increased water saturation compacts unsaturated soils due to a loss of slope maintenance, promoting soil particle consolidation; this is geotechnical Consolidation Settlement. Consequently, the soil subsides rather than retaining its former height, because stabilization from vegetation is eliminated and other issues worsen during continued use.

• Which outcome arises when Roman aqueduct arches settled unevenly?
• Which outcome affected image clarity in Alhazen's 11th-century experiments on spherical mirrors focusing sunlight?
• Which constraint increased regarding spherical trigonometry with geometric solutions on inaccurate medieval astrolabes?
• Which materials failure increases during sericulture if silkworms overheat?
• Which consequence arises when smelting iron using a 'bloomery' without complete carbon removal?
• Which outcome occurred during road paving, when Roman engineers released trapped gases using 'kerf' cuts?