Did you know you can tell how old a tree is by how many rings are on the trunk? Tree trunks grow thicker every year by adding a new ring of growth. New growth takes place
in the cambium. By counting the rings, people can tell the age of the tree.
You can also find out how rainy or dry a season was by looking at the tree rings. During a rainy season, the rings will be thicker because the tree is getting more
water. During seasons that are dry or during a drought, trees do not get as much water, so they do not grow as much and the tree rings are smaller.