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By Forestry Mcqs Pollution No Comments

Most harmful heavy metals causing water pollution:

A. Pb, Hg, Cr, Cd
B. P,Mn,B,Mg
C. N,K,Mo
D. Zn,Mo,Mg,Ag

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The correct answer to the question: "Most harmful heavy metals causing water pollution:" is "Pb, Hg, Cr, Cd ".

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