In pre-Columbian Andean terrace farming, which risk is heightened by poorly constructed terrace walls?

💡 Explanation

When terrace walls are poorly constructed, slope instability increases, which causes increased erosion risk. Consequently, massive nutrient runoff during intense rainfall increases from this erosion process. Ultimately this prevents sufficient nutrient levels, rather than frost damage, aeration issues, which require specific climate, or nematode infestation, which is pathogen related.

• Which risk increased for the pre-Columbian Maya civilization when terraces built for maize cultivation experienced prolonged rainfall?
• Which corrective measure significantly reduced position error during celestial navigation using an 18th-century sextant in heavy seas?
• Which risk increases when Roman siege ramp foundations experience differential soil settlement?
• Which optical effect, explained by Ibn al-Haytham, causes a mirage on hot desert surfaces?
• Which navigational error contributed most to shipwrecks before widespread adoption of Harrison's chronometer?
• Which outcome resulted when the Aztecs intensified chinampa cultivation with limited nutrient replenishment approaches?