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Which factor significantly contributes to the ongoing operational costs of a reservoir?

47. Which factor significantly contributes to the ongoing operational costs of a reservoir?

1. Reservoir's location
2. Initial construction material
3. Type of spillway design
4. Water level fluctuations

Answer

The correct answer is: D) Water level fluctuations

Explanation

Water level fluctuations necessitate constant monitoring and management, which incur ongoing operational costs for regulating water flow, flood control, and maintaining downstream water levels.