1.

Match the following {:("Column-I","Column-II"),((A) SO_(2),(P)"Secondary pollutant "),((B) " PAN",(Q) " odegradable"),((C)" Cow dung",(R)"Non-biodegradable "),((D)" DDT ",(S)" Primary pollutant "):}

Answer»


ANSWER :A-S;B-P;C-Q;D-R


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