Which constraint arises when Inca terrace farming abruptly transitions to a steeper slope angle?

💡 Explanation

When terraces meet a steeper slope, concentrated water runoff occurs from the upper terraces, oversaturating the lower terrace soils and increasing pore pressure, leading to slope instability and landslides. Therefore increased landslide risk results, rather than nutrient depletion, reduced sunlight, or root rot that arise from different environmental factors.

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