Which of the following group is not 'biodegradable' ?

Which of the following group is not 'biodegradable' ?
  1. Vegetable peels, dead leaves, paper
  2. Cow dung, leather bag, water
  3. Polythene bag, rubber band, ball pen
  4. Paper, fruits, bones

Solution

Polythene bag, rubber band, ball pen

Asked in: CBSE

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