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Suggest one precaution to be taken before disposing of the following :
(a) Sewage from homes
(b) Industrial wastes
(a) Sewage from homes
(b) Industrial wastes
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(a) Sewage should not contain solid waste, so sieve should be installed at the opening of drain. (or any other valid point) (1 Mark)
(b) Chemical treatment of industrial waste should be done before disposing it off. (or any other valid point) (1 Mark)
(b) Chemical treatment of industrial waste should be done before disposing it off. (or any other valid point) (1 Mark)