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The Epic Interactive Encyclopedia 1998
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Epic Interactive Encyclopedia, The - 1998 Edition (1998)(Epic Marketing).iso
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Hard_water
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INFOTEXT
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1992-09-04
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202b
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8 lines
Hard water is water that does not lather
easily with soap, and produces `fur' or
`scale' in kettles. It is caused by the
presence of certain salts of calcium and
magnesium.
Subject by: Andrew Row