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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

160 m3
1.6 x 106 m
8 x 106 m3
1.6 x 103 m3

Correct Answer: 1.6 x 106 m

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