Which outcome follows the saturation of terrace backfill?

💡 Explanation

Structural vulnerability of historical terraced agriculture relies on soil mechanics relating to hydrostatic pressure. After terrace backfill saturates, the increased pore water pressure diminishes the soil’s shear strength because the load increases total stress, therefore geogrid reinforcement loss causes instabilities, rather than strengthening the material as the other options describe.

• Which consequence results when a ship's astronomical observation is affected by instrument error in an 18th-century quadrant?
• Which mechanical consequence results when arsenic content varies significantly within a cast bronze Adze blade?
• Which system vulnerability influenced design adaptations within Mughal garden water features?
• Which risk increased for Mayan hydraulic systems following deforestation?
• Which consequence results when a quadratic celestial position equation within an astrolabe calculation yields imaginary roots?
• Which outcome occurs during freeze-thaw cycles on poorly mortared stone structures?