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The question is very general but it may be pointed out that pollution can affect plant growth in many ways depending on the specific pollutant and the concentration of the material. Ethylene oxide can stimulate plant growth and increase the speed of ripening of fruit, carbon dioxide is a vital promoter of plant growth used in photosynthesis although it is a pollutant responsible for global climate change when it is excess. Suffer dioxide can kill plants or cause the discolouration of leaves or needles (on evergreens). For liquid and solid pollutants there are an equal variety of effects. many pollutants such as manure or sewage are used to provide nutrients like nitrogen for plant growth but van contain heavy metals which build up in soils to inhibit growth or make the crops unsafe to eat. Adid rain which results from acid gases contaminating rain or other precipitation can affect root growing and impact soil structure.

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10y ago

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