MCQ
Which of the following is a reversible change?
- ARipening of the fruit.
- ✓Melting of ice.
- CBurning of paper.
- DConverting wood into saw dust.
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| S.No. | Column$-I$ | S.No. | Column$-II$ |
| $A.$ | Landfill | $(p)$ | Completely rotten garbage used for plant nutrients. |
| $B.$ | Manure | $(q)$ | Low lying areas where garbage of a city is dumped. |
| $C.$ | Composting | $(r)$ | The process in which use of organisms is essential. |
| $D.$ | Vermi composting | $(s)$ | Converting plants and animal wastes into manure. |