| 31. | Even at relatively high concentrations, carbon dioxide is not harmful.
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| 32. | Diesels produce sulfur dioxide and polluting particles that are tightly regulated.
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| 33. | When combined with moisture and acidic ingredients it produces carbon dioxide.
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| 34. | Brown coal burning produces a third of German carbon dioxide emissions.
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| 35. | Coal burning produces sulphur dioxide, a component of acid rain.
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| 36. | The forecasts will measure sulphur dioxide, particulate and nitrogen oxide.
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| 37. | As carbon dioxide spews heavenward, the industry bides its time.
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| 38. | The fermentation process also releases a high amount of carbon dioxide.
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| 39. | Carbon dioxide is deemed the most virulent of the greenhouse gases.
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| 40. | On farms, government teams gassed the birds with carbon dioxide.
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