Effluents from the factories spoil the environment. [Please select]
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It is derived from the hills in the neighbourhood of Avellino, and is thought to be the effluent of an underground lake. [Please select]
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If the paper works be those working up wood pulp, the pollutions of effluent water will be about as noxious as they well can be. [Please select]
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The effluent gases are passed through a scrubber in order to free them from the last traces of acid before discharging them into the atmosphere. [Please select]
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