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Costs decrease with growing scale of farm items, such as making graphics games larger; this implies removing hedges, ditches and different areas of habitat. These and different measures have cut biodiversity to very low ranges on intensively farmed land. Effective yields fall with on-farm losses, which can be brought on by poor production practices throughout harvesting, handling, and storage. Excessive fertilization and manure utility to cropland, as well as excessive livestock stocking densities trigger nutrient runoff and leaching from agricultural land. These nutrients are main nonpoint pollution contributing to eutrophication of aquatic ecosystems and air pollution of groundwater, with dangerous effects on human populations. Fertilisers additionally scale back terrestrial biodiversity by growing competitors for gentle, favouring these species that are capable of profit from the added nutrients.Agriculture accounts for 70 p.c of withdrawals of freshwater assets. Agriculture is a