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Which of the following parameters of the water is not altered after its use?

(a) Physical

(b) Chemical

(c) pH

(d) Volume

I had been asked this question in semester exam.

Question is from Microbial Processes in Wastewater Treatment topic in division Biological Treatment of Waste Water of Environmental Biotechnology

1 Answer

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Best answer
Right answer is (d) Volume

The explanation is: The waste water has an altered chemical and or physical properties when it is used by various industries, also, pH is altered but the volume of the water remains the same.

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