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A review of restrictive policies in 19 states showed declines in access to soda.
Concentration
The amount of a given substance in a specified volume or mass of a solution or mixture.
Groundwater
Water that is found underground in the cracks and spaces in soil, sand, and rock, an important source of water for wells and springs.
Irrigation
The artificial application of water to land to assist in the production of crops.
Porosity
The measure of void spaces in a material, indicating the volume percentage of pores or spaces between particles.
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