_______ indicates the freshness of grey ...
_______ indicates the freshness of grey water.
Answer» B. Color
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The rate of amount of water vapour present to the amount it would have contained, had it been saturated, is known as the ___________
What is called for the method of removing dust and other particles from water using filters?
In urban cities like Bangalore, which of the water carriage system is used?
The direction of water in filter beds is reversed for ______
Rapid filtration is used as the _______ clarifying step in municipal water treatment plants.
Water proofing treatment is one type of
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