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The roots of plants help hold soil together. Exudates, which are the waste products of plants, help recyclenutrients and water back into the soil in the form of sugars. Exudates also feed the soil food web. The death and decay of lichen, moss, and plants add vegetative organic matter to soil. Fungi and bacteria are among the representatives of the soil's microorganisms. Bacterial glue and fungal threads help hold soil together. Additionally, there are nitrogen fixing bacteria that change nitrogen that's present but inaccessible, into nitrogen that's soluble and therefore available to plant roots.

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βˆ™ 2009-04-24 18:21:33
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Q: What role do plants and mosses and lichens and fungi and bacteria play in soil formation?
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