A) its height and girth
B) biomass
C) number of annual rings
D) diameter of its heartwood
Correct Answer: C
Solution :
Age of tree can be estimated by number of annual rings. The two kinds of woods that appear as .alternate concentric rings, constitute an annual ring heartwood comprises dead elements with highly lignified walls that give mechanical support to the stem. The height and girth of a tree increases due to the activity of vascular cambium.
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