Which of the Following Soil Additives Would Best Reduce the Concentration

question 42

Multiple Choice

Which of the following soil additives would best reduce the concentration of dissolved Fe³⁺ in ground water?

• A) lime [Ca(OH)₂]
• B) saltpeter [KNO₃]
• C) ferric chloride [FeCl₃]
• D) ammonium nitrate
• E) ammonium sulfate

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