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An ecosystem where all water runoff drains into a single body of water


a body of rock or sediment that stores groundwater and allows the flow of groundwater.

ground water

water that seeps downward into and through soil or rock; water stored underground in rock layers


The amount of open space between rock particles.


ability of rock or soil to allow water to flow through it


Release of harmful materials into the environment


The downward movement of water through soil and rock due to gravity.


the movement of surface water into rock or soil through cracks and pore spaces

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