| 11. | The unpleasant smell of tallow candles is due to the glycerine they contain.
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| 12. | It is a colorless, highly toxic gas with an extremely unpleasant smell.
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| 13. | The sprays of small greenish flowers emit an unpleasant smell that attracts flies.
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| 14. | It has an unpleasant smell and taste, and may also be a carcinogen.
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| 15. | Accidents in their laboratory filled the Salmoni house with unpleasant smells and corrosive gases.
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| 16. | Barium sulfide-based depilatories are most effective, but produce an unpleasant smell.
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| 17. | The Gas Works caused a continuous unpleasant smell.
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| 18. | It defends itself by emitting an unpleasant smell.
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| 19. | The chemical is notable for having a very strong, unpleasant smell that lingers.
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| 20. | The neighbours noticed an unusual, unpleasant smell.
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