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lead battery manufacturing factory
disposal of unburnt corpses into water
reuse
40 years
afforestation
The pH of 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?
lead battery manufacturing factory
lead battery manufacturing factory
See lessThe main cause for abundant coliform bacteria in the river Ganga is
disposal of unburnt corpses into water
disposal of unburnt corpses into water
See lessWhich of the following is the best method from environment point of view?
reuse
reuse
See lessAt present consumption rate, the petroleum resources of the world will last for another
40 years
40 years
See lessFloods can be prevented by
afforestation
afforestation
See less