Which one is bio-degradable? A. Iron nail B. PVC C. Leather belt D. Plastic
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Answer:
C
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a) iron nails
Iron nails can be broken down by certain bacteria due to oxidation by the process called rusting. ... This rust can be swept away and dissolve in bloods which can increase the toxic levels in blood. Therefore their biodegradability is undesired and reuse is preferred as it causes pollution.
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