A Admin • 833K Points Coach Q. Threshold limit value of copper in the atmospheric air is (A) 0.01 mg/m3 (B) 1.0 mg/m3 (C) 5.0 mg/m3 (D) 0.001 mg/m3 Correct Answer - Option(B) Views: 17 Filed under category Physics Hashtags: Share Manage Tags
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