Productive aquifers exist best under conditions of

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Quizplus · Accepted Answer

Productive aquifers require high porosity and permeability, which is best achieved with sand, gravel, and rock that have little cementing agent. Clay layers can restrict the movement of water and decrease permeability, making them less ideal for productive aquifers. A deficit of surface water may indicate a greater potential for groundwater recharge, but it is not a direct indicator of aquifer productivity.

Productive Aquifers Exist Best Under Conditions of