| 41. | Concrete, gypsum wallboard and paint waste alter soil acidity.
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| 42. | He stepped inside and immediately slipped down two flights of grimy gypsum.
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| 43. | Gypsum is a waste byproduct from the manufacturing of fertilizer.
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| 44. | Gypsum is a grayish-brown mineral byproduct of the fertilizer manufacturing.
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| 45. | This was the second accident involving a Cargill gypsum stack this month.
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| 46. | Radioactive elements in gypsum produce cancer-causing radon gas.
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| 47. | They have a stoneyard in Gypsum that ships stone around the world.
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| 48. | National Gypsum's shares have been surging of late.
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| 49. | National Gypsum emerged from bankruptcy protection in July 1993 after three years.
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| 50. | Noble uses gypsum marking that blows away when the wind picks up.
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