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Which risk increases when ancient stepped terraces exceed design specifications?

A)Increased nutrient runoff rates
B)Accelerated hydraulic pressuring occurs
C)Amplified wind erosion damages slopes
D)Limited available crop pollination

💡 Explanation

Excessive terrace height amplifies weight on lower levels inducing soil Pressure, triggering soil compaction, increased bulk density, and reducing friction via heightened Pore Water Pressure. Accelerated Terraced Hydraulic Pressuring may compromise basal layers; therefore instability increases on stepped terraces, rather than runoff effects.

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