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← HistoryWhich outcome increases crop vulnerability when hillside terraces in the Andes experience differential settling?
A)Increased landslide risk from saturated soil✓
B)Trace element deficiency due to disrupted layers
C)Anaerobic conditions inhibiting root respiration
D)Sun scald damage through exposed roots
💡 Explanation
When differential settling occurs on terraces, internal drainage pathways are disrupted because compaction alters soil saturation levels, leading to increased water retention and heightened landslide risk. Therefore, increased landslide risk results, rather than deficiency, anaerobic soil, or scald, which involve nutrient, ventilation, or radiation imbalances.
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