Which mechanism reduces soil erosion on terraces using pre-Columbian agriculture techniques?

💡 Explanation

When terraces are constructed, contour planting follows the terrace contours, establishing rows perpendicular to the slope, this inhibits surface runoff because tilled furrows limit water speed, increasing infiltration. Therefore reduced erosion results, rather than increased root density, water redirection or raindrop impact which involve fundamentally different processes on fields.

• Which mechanical outcome accelerated the decline of Roman aqueducts after the 5th century AD?
• During the 18th century age of sail, which risk increased when ships exceeded established hull submerged depth limits?
• Which mechanism most directly enabled ancient mariners to accurately estimate longitude?
• Which navigational error increases when utilizing a sextant from a ship experiencing heavy rolling?
• Which cumulative failure mode impacted long-term stability of Roman roads built on clay-rich soil?
• During a Roman siege, which effect results from repeatedly impacting a city wall with a battering ram?