| 1. | This could have been from the unpurified water that we unknowingly drank.
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| 2. | We are drinking unpurified water and we have nothing to eat ."
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| 3. | Shortages of electricity and chemicals leave sewage stagnant and unpurified.
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| 4. | Metal cleaning can easily be mixed up with refinement of unpurified metals.
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| 5. | On top of the sand bed sits a supernatant layer of unpurified water.
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| 6. | Fresh, unpurified wine contains DNA from grapes.
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| 7. | Unpurified water settled in ponds that had been turned into heavily polluted dump sites.
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| 8. | One goat produces the unpurified drug at the rate of more than four grams per liter of milk.
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| 9. | The product's active ingredient, botulism toxin, can be poisonous in its natural, unpurified form.
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| 10. | The product's active ingredient, botulinum toxin, can be poisonous in its natural, unpurified form.
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