Aquifer Study Guide with correct answers

aquifer CORRECT ANSWER An aquifer is a pool of groundwater that is large enough to be an economic recourse exists in sediment Ways to clean Aquifers CORRECT ANSWER -Pump water out of aquifer on downhill side Pump clean water into the aquifer on the uphill side -Close off Aquifer from the world when it becomes too dangerous -Stop the pollution at the source. Find the source and shut it down. -Dig a deeper well (very hard to contaminate deep aquifer because the soil acts as a filter. However, it is very difficult to clean deep aquifers because it is very expensive) Confined Aquifer CORRECT ANSWER A confined aquifer is an aquifer that is sandwiched between two layers of rock or clay. It lets water in but doesn't let the water out (deeper) Unconfined Aquifer CORRECT ANSWER An aquifer that has no confining layer. NO sandwiching. This aquifer is less deep than a confined layer. (Shallower: water doesn't stay well) Artesian Aquifer CORRECT ANSWER An Aquifer that needs no pump: Water comes from such a height that gravity acts as its pump Aquitard CORRECT ANSWER A rock like granit