Exam (elaborations)
Civil FE Practice Exam With Questions And Answers 2023
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Hardness in natural water is caused by the presence of which of the following? A. Weakly acidic ions B. Nitrites and nitrates C. Polyvalent metallic cations D. Colloidal solids correct answer: c In aquatic systems, phosphorous recycling is significantly aided by which of the following? I. Alg...
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