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	Nutrients in Soil \|\|Challenges in improving agricultural production (Learn Yourself) View
	Control of disease- carriers (Vectors)\|\| Flies, Mosquitoes, Rats, Cockroaches \|\| Biology (Learn Yourself) View
	Optimizing land use allocation u0026 matter fluxes for minimizing environmental impacts of agriculture (CLand Convergence Institute) View
	Ocean zone :Euphotic zone, Bathyal zone, Abyssal zone \|\|Science \|\| (Learn Yourself) View
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