Biodegradable vs Non-biodegradable — Difference (with Table & FAQs)
Biodegradable vs Non-biodegradable compared side by side — a 5-row comparison table, 4 key points and 3 exam FAQs. Class 9 Science, free and no sign-up.
TL;DR: Biodegradable vs Non-biodegradable compared side by side — a 5-row comparison table, 4 key points and 3 exam FAQs. Class 9 Science, free and no sign-u…
Written & reviewed by the Syllab.in Academic Team (CBSE/NCERT subject experts) · Updated
The main difference between Biodegradable and Non-biodegradable: Biodegradable materials break down naturally while non-biodegradable materials persist in environment. Understanding this is critical for waste management.
Biodegradable vs Non-biodegradable — Comparison Table
| Basis | Biodegradable | Non-biodegradable |
|---|---|---|
| Decomposition | Breaks down by bacteria and fungi | Does not break down naturally |
| Time | Weeks to years | Hundreds to thousands of years |
| Environmental impact | Minimal impact | Significant pollution |
| Examples | Paper, wood, food waste | Plastic, glass, metal |
| End product | Soil and nutrients | Persistent toxins |
Key Points
- Biodegradable materials return to earth
- Non-biodegradable waste accumulates in landfills
- Plastic takes over 500 years to degrade
- Composting accelerates biodegradation
Frequently Asked Questions
What makes a substance biodegradable?
A biodegradable substance can be broken down into simpler, harmless substances by the action of micro-organisms such as bacteria and fungi. Paper, cotton, food waste and wood are biodegradable.
Why are non-biodegradable substances a problem?
Micro-organisms cannot break them down, so they remain in the environment for a very long time. They accumulate in soil and water, can choke drains and waterways, and may harm animals that swallow them.
Give examples of each.
Biodegradable: vegetable peel, paper, cloth made from cotton or jute, and animal waste. Non-biodegradable: most plastics, glass, metal cans, and synthetic fibres.