In a field test, a time of 5 h is required for a tracer to travel thro – McqOptions

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1.	In a field test, a time of 5 h is required for a tracer to travel through an aquifer (porosity = 20%) from one well to another. If observation wells are located 50 m apart and the difference in the water levels is found to be 0.5 m, the discharge velocity (cm/s) is
A.	10
B.	0.055
C.	2.5
D.	0.55
E.	0.25
Answer» C. 2.5

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