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← ScienceWhich mechanism increases erosion severity following river dam removal?
A)Increased flow turbulence intensity✓
B)Decreased sediment load capacity
C)Localized laminar flow regions
D)Reduced channel gradient equilibrium
💡 Explanation
Increased flow resulting from dam removal induces turbulence because previously dampened energy dissipation now causes chaotic, swirling motion. Therefore, abrasive sediment entrainment rises dramatically, rather than stable laminar flows or balanced transport conditions.
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