AP BIOLOGY

Detailed explanation-1: -The age of the trees can be calculated by the number of annual rings. This method is called dendrochronology . Dendrochronology is the most useful technique to determine the appropriate age of samples. It is highly helpful especially in those samples which are too recent for radiocarbon dating.

Detailed explanation-2: -Count the dark rings to calculate the age of the tree. Start in the middle of the stump or cross-section of wood and count the first dark ring you see. Continue counting outwards from the middle ring until you reach the last dark ring. The total number of dark rings represents the age of the tree in years.

Detailed explanation-3: -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. This use of tree-ring dating to find the age of a tree is also known as dendrochronology.

Detailed explanation-4: -These rings can tell us how old the tree is, and what the weather was like during each year of the tree’s life. The light-colored rings represent wood that grew in the spring and early summer, while the dark rings represent wood that grew in the late summer and fall.

Detailed explanation-5: -Dendrochronology is the dating and study of annual rings in trees.