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PAC 1 Test Questions & Answers
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PAC 1 Test Questions & Answers Most water sources are classified as: a) Clean or dirty b) Hot or cold c) Surface or well d) Acidic or alkaline - c) Surface or well Fe++, Mg++ are known as: a) divalent anions b) divalent cations c) reactive atoms d) molecules - b) divalent cations ...
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