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artesian well

A well in which water rises because of pressure within the aquifer.


A type of hot spring in which the water is under pressure and bursts periodically into the air


The process of SUPPLYING WATER to areas of land to make them suitable for GROWING CROPS


the preservation and careful management of the environment and of natural resources

water pollution

The addition of any substancethat has a negative affect on water or the living things that depend on the water.


The substance that causes water pollution.

point source

A specific source of pollution that can be identified, such as a pipe.

nonpoint source

A widely spread source of pollution that is difficult to link to a specific point of origin.

water quality

a measurement of the substances in water besides water molecules


The amount of one material in a certain volume of another material


a measure of how acidic or basic a solution is on a scale of 0-14


the level of the minerals calcium and magnesium in water


bacteria found in human and animal waste


the process whereby fluids pass through a filter or a filtering medium


The process by which particles in a liquid clump together; a step in the water treatment process.

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