| http://www.w3.org/ns/prov#value | - The carbon is then used by the plant to manufacture carbohydrates like cellulose and almost all other plant matter--roots, stems, leaves, fruits, and nuts--and the oxygen is exhaled as a waste gas by the plant.Many people I have met believe that plants are made up of soil--that the tree outside your house, for example, is mostly made from the soil in which it grew.
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