the PH of water sample collected form a river was found to be acidic in the range of 3.5-4.5 on the bank of the river were several factories that were discharging effluents into the river. the effluents of which one of the following factories is the most likely cause for lowering the PH of river water?
1.soap&detergent factory
2.lead battery manufacturing factory
3.plastic cup manufacturing factory
4.alcohal distillery
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Answer:
lead battery manufacturing factory
Explanation:
acid is used in lead batteries which has lower pH
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