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civil engineering gate exam questions
1. In an area of 200 hectare, water table drops by 4 m. If the porosity is 0.35 and the specific retention is 0.15, change in volume of storage in the aquifer is
(A): 1.6 x 103 m3
(B): 1.6 x 106 m
(C): 160 m3
(D): 8 x 106 m3
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