题目内容
A spring is an area on the surface of the Earth where the water table intersects the surface and water flows out of the ground, while a well is human-made hole that is dug or drilled deep enough to intersect the water table.
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Permeability is a measure of the degree to which the pore spaces are interconnected, and the size of the interconnections.
Poorly sorted sediments usually have a low porosity.
The percentage of all pore spaces in a rock or sediment is called porosity
Which of the following is NOT a characteristic of groundwater?
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