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Which of the following doesn’t lead to toxicity of waste water?

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in Environmental Biotechnology by (64.7k points)
Which of the following doesn’t lead to toxicity of waste water?

(a) Magnesium

(b) Arsenic

(c) Lead

(d) Chromium

The question was asked during an internship interview.

I need to ask this question from Biological Removal, Biotransformation and Biosorption of Metal Ions from Contaminated Wastewater topic in division Bacterial Metabolism in Wastewater Treatment Systems of Environmental Biotechnology

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Best answer
Right option is (a) Magnesium

The explanation is: Arsenic, lead, mercury, cadmium, chromium, copper, nickel, silver, and zinc are few toxic heavy metals that lead to toxicity of waste water causing serious health and environmental issues, Magnesium is a metal but not toxic.

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