Class 10ScienceSustainable Management of Natural ResourcesMix Examples - Sustainable Management of Natural Resources
DifficultThe $pH$ of a water sample collected from a river was found to be acidic in the range of $3.5-4.5$. On the banks 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?
- ASoap and detergent factory
- BLead battery manufacturing factory
- CPlastic cup manufacturing factory
- DAlcohol distillery
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