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| Q. |
Can vacated coal mines be used for waste disposal. |
| A. | true |
| B. | false |
| Answer» A. true | |
| Explanation: yes, vacated coal mines can be used for waste disposal. the wastes are disposed in the salt heaps provided in the mines, because salt is a powerful absorber of radioactive emissions. it will be easy and more economical method to dispose of liquid waste by freezing. | |
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