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प्रश्न
Match the following.
| Universal solvent | Water pollutant |
| Hard water | Kills germs |
| Boiling | Ozonisation |
| Sterilization | Water |
| Sewage | Stomach ailments |
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उत्तर
| Universal solvent |
Water |
| Hard water | Water pollutant |
| Boiling | Stomach ailments |
| Sterilization | Ozonisation |
| Sewage | Kills germs |
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