Objective Type Questions \( \mathrm{P} \) Which one of the followin...
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Objective Type Questions
\( \mathrm{P} \)
Which one of the following is not a nonbiodegradable industrial waste?
W
(1) Gypsum from fertilizer industries
(2) Mud and tailings from metal industries
(3) Slag from steel industries
(4) Waste from textile industries
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