Which maintenance challenge threatens terrace stability during prolonged use?

💡 Explanation

Downslope movement increases as soil cohesion decreases; this is called mass wasting. The reduced strength causes terrace failure, therefore cohesive strength is overcome because gravity and pore pressure increase rather than nutrient depletion being the sole driver.

• Which outcome arose when insufficient potash sources limited early Venetian Murano glass production?
• Which technological advancement enabled Alhazen to empirically validate his intromission theory of vision within medieval optics?
• Which benefit did terrace construction specifically provide in ancient Andean maize agriculture?
• Which data interpretation inaccuracy risks arising when medieval astrolabes experience plate misalignment?
• Which functional degradation was accelerated by hull sheathing practices developed for 18th-century ships?
• Which defensive outcome increased the lifespan of Roman timber forts after initial construction?