Impurity of rain water
a.
Minerals
b.
suspended particles
c.
both (2) & (3)
d.
gases
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Abundant supplies of fresh water are essential to the development of industry. Enormous quantities are required for the cooling of products and equipment, for process needs, for boiler feed, and for sanitary and potable water supply.
THE PLANETARY WATER CYCLE
Industry is a small participant in the global water cycle .The finite amount of water on the planet participates in a very complicated recycling scheme that provides for its reuse. This recycling of water is termed the
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