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4.0 Intro - Hw ask Qs literal inference evaluate.pdf4.1 Engineer ecosys modern agric.pdf4.2 Manage soil.pdf4.3 Fertile grounds.pdf4.4 Pests poisons.pdf4.5. Issues pesticides.pdf7.8. DDT.pdf4.6. Greening reduce footprint.pdf4.7 Urban ecosys.pdf4.8 Waste management.pdfCh 4 rev Qs.pdfReport abuse