GAMES RIGHT! How can you determine the age of a tree? By the rings on the cross-section of the trunk By the height of the tree By the number of leaves on the tree Next Question The number of rings on the trunk determines the age of a tree. However, the tree trunk must be sawed so that you can see the cross-section. Each year, a tree trunk grows in width and a visible ring is left behind. © 2024 High Touch Entertainment, LLC All Rights Reserved Tweet