Solution –
| Biodegradable substances | Non-biodegradable substances |
| It refers to any substance that is capable of undergoing biodegradation | By non biodegradable we mean any substance or material that cannot be degraded . |
| These materials undergo degradation rapidly and easily | Either they do not undergo degradation or the duration of degradation is very long |
| Biodegradation rate is very high | Very low bio degradation rate e |
| Examples – fruit , paper etc | Examples – plastics , polybags , e- waste etc. |