On Pre-Columbian Andean terrace farms, which risk increased severely when the hydrological cycle was disrupted?

💡 Explanation

When the hydrological cycle is disrupted, terraces suffer from uncontrolled rainwater due to increased surface runoff, leading to increased soil erosion rates because retaining walls weaken. Therefore, increased soil erosion results rather than crop pollination, over-sedimentation, or over-nitrification, which depend on different environmental factors.

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