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Which outcome results when improperly designed fjord hydropower dams impede sediment transport?

A)Accelerated abrasion of turbine blades
B)Saltwater intrusion to formerly freshwater
C)Downstream delta erosion accelerates intensely
D)Methane clathrate destabilization greatly increases

💡 Explanation

Intense downstream delta erosion accelerates because dams block sediment renewal via sediment starvation; therefore, the delta recedes rather than accretes normally. Upstream effects can happen, but delta erosion is the explicit nearshore consequence.

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