Respuesta :

Wood density varies depending on species, growth condition, and tree developmental stage. For example, eastern cottonwood wood has a density of about ∼320 kg/m3 while oak species often exceed ∼550 kg/m3 (Isenberg, 1980)

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Explanation:

density to the amount of wood in a unit , per volume of wood. the ratio of dry weight and green volume of the given wood is basic wood density.