Question

Dendrochronology is the study of
A. Height of a tree
B. Age of a tree by counting the number of annual rings in the main stem
C. Diameter of a tree
D. Age of tree by counting the number of leaves in the main stem

Answer 1

Hint: Dendrochronology is the science of tree rings. The age of the tree can be determined on the basis of this study. It also provides data for determining the climatic conditions of a different time period with the help of wood.

Complete answer:
Dendrochronology is also referred to as tree-ring dating. The word has got its name of greek origin, “Dendron” means “tree”, “khronos” means “time” while “logia” means “study”. So, it can be defined as a scientific approach by which tree rings or the growth rings can be dated to the precise year of their formation. This study often provides data for the dendroclimatology which is the study of wood for determining atmospheric and climatic conditions occurring during various periods of time in history. Thus, using dendrochronology tree rings formed in various types of woods can be dated back to the period of their formation in the calendar. So, it can be implied that the study of the age of various trees can be determined through counting of a number of annual rings present in the main stem. This is known as Dendrochronology.
Thus, the right option is B.

Note: Dendrochronology is a useful approach for determination of the exact age of the samples under study. But using the trimmed timber for determining the age of a tree is not that much useful. A rather full sample to the edge is required for determining the exact date of the plant death.