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The top documents tagged [ddt story ddt]
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Environmental Science: Toward a Sustainable Future Richard T. Wright Pests and Pest Control PPT by Clark E. Adams Chapter 16
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DDT, a powerful insecticide, is invented by chemist Paul Hermann Muller
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1.4 Feeding People p. 25-34. Productivity The average amounts of new plant biomass produced each year per unit area
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