caption: Aquifers Aquifers can be refilled as water percolates down through the recharge zone, may take a long time Aquifers can be refilled as water percolates down through the recharge zone, may take a long time Porosity -- amount of space between particles of the rock Porosity -- amount of space between particles of the rock Permeability -- ability of the rock or soil to allow water to flow through it Permeability -- ability of the rock or soil to allow water to flow through it Pollution can enter the groundwater through the recharge zone (think about Silent Spring) -- it can then travel to other places through the underground water system, even showing up years later Pollution can enter the groundwater through the recharge zone (think about Silent Spring) -- it can then travel to other places through the underground water system, even showing up years later
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