Which risk increases when pre-Columbian terrace construction destabilizes steep hillside slopes above dwellings?

💡 Explanation

When terrace construction destabilizes steep slopes, increased soil mass and altered hydrology raise landslide risk because gravity and water infiltration cause soil shear failure along weakened planes. Therefore, downslope landslides are increased instead of reduced irradiance, topsoil depletion, or increased temperatures, each requiring different dominant mechanisms.

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