Q1. [1] § 13.2.2 Managing the Garbage we Produce
Some wastes are given below :
(i) Garden waste
(ii) Ball point pen refills
(iii) Empty medicine bottles made of glass
(iv) Peels of fruits and vegetables
(v) Old cotton shirt
The non-biodegradable wastes among these are :
- A (i) and (ii)
- B (ii) and (iii)
- C (i), (iv) and (v)
- D (i), (iii) and (iv)
Previously asked in CBSE board exam
2024 31/4/1 Q16
Generated by claude-sonnet-4-6 · 2026-06-15 06:42 · grounding rag
Model Answer
Option B: (ii) and (iii)
Ball point pen refills (plastic) and empty medicine bottles made of glass are non-biodegradable, as they cannot be broken down by biological processes.
Explanation
Non-biodegradable substances are those not broken down by bacteria or other biological agents. Garden waste, fruit/vegetable peels, and cotton (natural fibre) are all biodegradable. Plastic (pen refills) and glass (medicine bottles) are human-made/inorganic materials that persist in the environment — exactly the type described in the textbook as non-biodegradable.
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