Question
Reversible change and Irreversible change
| Reversible change | Irreversible change |
| 1. The changes that can occur in a forward and reverse direction again and again is called reversible. | 1. The changes which we can not reverse back to some thing are called irreversible change. |
| 2. E.g.: (a) Melting a wax candle and obtaining the original solid wax again, (b) Stretching a rubber or spring. | 2. E.g.: Burning of paper or wood cannot be undone. Wood cannot be obtained from the ash. |
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| Plant/animal | Special adaptation/features |
| 1. Fish | |
| 2. Bird | |
| 3. Camel | |
| 4. Deer | |
| 5. Tiger | |
| 6. Duck | |
| 7. Fungi | |
| 8. Cuscuta | |
| 9. Venus fly trap | |
| 10. Deodar tree | |
| 11. Grape vine | |
| 12. Acacia |