Question

what is annual ring. Write its importance.

Answer 1

Definition of annual ring

: the layer of wood produced by one year's growth of a woody plant (as in the trunk of a tree)

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Answer 2

annual rings are formed due to activity of vascular cambium during intra stelar secondary growth. the activity of cambium is under the control of many physiological and environmental factors. during favourable reasons for growth that is in Spring when more leaves and flowers are formed the plant require large amount of water and Minerals salt to be transported. annual rings help and counting the number of onion rings gives the approximate age of trees the older annual rings from heartwood which is the source of timber