Water resources 0.0 / 5 ? GeologyUnit 4 water resourcesA2/A-levelOCR Created by: Night-rubyCreated on: 26-09-16 20:27 Groundwater The water retained in the pore spaces of rocks below the water table 1 of 6 Porosity The volume of pore spaces 2 of 6 Permeability The rate at which a fluid flows through a rock 3 of 6 water table The surface separating unsaturated rock above from saturated rock below 4 of 6 Hydrostatic pressure The pressure at a point in a body of water due to the weight of the overlying column of water 5 of 6 Hydraulic gradient The difference in hydrostatic pressure between two points divided by the distance between them 6 of 6
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