Tarbela dam is being silted at ______ acre feet per year while Mangla is being silted at a rate of _____ acre feet per year due to misuse of their watershed area:
Correct answer: A. 109000, 42,000
- A. 109000, 42,000
- B. 110000, 43000
- C. 115000, 44,000
- D. None of these
Explanation
The cited watershed-management estimate gives annual siltation of approximately 109,000 acre-feet for Tarbela and 42,000 acre-feet for Mangla. Sediment carried from degraded catchments reduces reservoir storage capacity.
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