Question

Which of the following group is not 'biodegradable'?

• A. Vegetable peels, dead leaves, paper
• B. Cow dung, leather bag, water
• C. Polythene bag, rubber band, ball pen
• D. Paper, fruits, bones

Hint:

Biodegradable: Organic materials from plants/animals (paper, wood, food waste, cotton).
Non-biodegradable: Synthetic materials (plastics, polyester, rubber, metals, glass).
Choose eco-friendly biodegradable products to reduce pollution!

Answer 1

The Correct Option is C

Step 1: Understand biodegradable and non-biodegradable materials.

• Biodegradable: Materials that can be broken down by microorganisms (bacteria, fungi) into simpler, harmless substances. Examples: plant waste, animal waste, paper, food scraps.
• Non-biodegradable: Materials that cannot be broken down by microorganisms and persist in the environment for long periods. Examples: plastics, synthetic materials, metals, glass.

Step 2: Analyze each group.

• (A) Vegetable peels, dead leaves, paper: All are biodegradable. These are organic materials that decompose naturally.
• (B) Cow dung, leather bag, water: Cow dung and leather are biodegradable; water is not a waste material in this context. Leather is animal hide and can decompose over time.
• (C) Polythene bag, rubber band, ball pen: All are non-biodegradable. Polythene is plastic, rubber bands are synthetic, and ball pens contain plastic and metal components that do not decompose easily.
• (D) Paper, fruits, bones: All are biodegradable. Paper decomposes, fruits rot, and bones eventually decompose (though slowly).

Step 3: Identify the non-biodegradable group.
Option (C) contains only non-biodegradable items. Final Answer: (C) Polythene bag, rubber band, ball pen