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← HistoryWhich consequence arises in ancient terrace farming when walls degrade?
A)Increased soil erosion and landslides✓
B)Decreased sunlight capture efficiency
C)Reduced local biological diversity
D)Elevated evapotranspiration and drought
💡 Explanation
Increased erosion and landslides occur because terrace degradation promotes soil instability leading to slope failure, rather than optimized water supply with controlled drainage. Water saturation concentrates, weakening structural components; therefore, terrace geometry shifts destabilizing slopes rather than plants adapting.
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