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प्रश्न
Which group of waste materials can be classified as non-biodegradable?
विकल्प
Plant waste, used tea bags
Polythene bags, plastic toys
Used tea bags, paper straw
Old clothes, broken footwear
MCQ
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उत्तर
Polythene bags, plastic toys
Explanation:
Polythene bags and plastic toys are non-biodegradable because they do not decompose naturally by microorganisms and remain in the environment for a very long time.
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