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← HistoryWhich consequence resulted when the Inca irrigation terraces experienced poorly managed drainage?
A)Reduced root zone oxygenation✓
B)Increased surface water evaporation
C)Improved nutrient uptake efficiency
D)Decreased soil microbial activity
💡 Explanation
Waterlogging occurs due to inadequate drainage, causing reduced root zone oxygenation because downward percolation decreases; plant stress therefore increases, rather than enhanced nutrient supply, which would require aerobic microbial activity.
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