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प्रश्न
Which of the following group is not ‘biodegradable’?
विकल्प
Vegetable peels, dead leaves, paper
Cow dung, leather bag, water
Polythene bag, rubber band, ball pen
Paper, fruits, bones
MCQ
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उत्तर
Polythene bag, rubber band, ball pen
Explanation:
Non-biodegradable substances cannot be broken down by microorganisms. Items like polythene bags, rubber, and plastic (ball pen) persist in the environment for a long time.
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