Which of the following is non biodegradable substance .1.cow dung.2.plastic.3.Manure.4.plant product
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Plastic is a non bio degradable substance
Manure and cow dung are used as fertilisers and are easily degradeable .Plant product like leaves etc are also degradeable .However plastic is non degradeable.it causes soil pollution if dumped in soil.If dumped in water it causes trouble for the aquatic beings .Hence we should always avoid plastic
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