| 31. | Khan invented complex Laser components for tractors to reduce hazardous waste.
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| 32. | He also opposed siting hazardous waste dumps on Native American lands.
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| 33. | The accord ended a lawsuit filed in 1980 over the hazardous waste dump.
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| 34. | They argued the shipments violate national and international laws against exporting hazardous wastes.
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| 35. | The early industries had left many sites contaminated with hazardous wastes.
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| 36. | Many types of businesses in the United States generate hazardous waste.
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| 37. | A Superfund site is an abandoned site that contains hazardous waste.
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| 38. | As such it has always been considered a hazardous waste.
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| 39. | Their clothing was removed by a hazardous waste cleanup crew.
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| 40. | In the 1980s, hazardous waste was observed in the creek.
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