Q12. The cross section of a stem of tree has fifty rings . what is the age of the tree ? (a)50 months (b) 5 years (c) 25 years (d) 50 years
As woody plants grow in diameter a new layer of wood is produced each year by the cambium. This layer is called as annual ring or growth ring. By counting the rings, the age of a tree can be determined. Therefore, the cross-section of a trunk of tree showing 50 annual rings is having 50 years of its age.
