Fact 1: The number of rings in a tree trunk can be used to estimate the age of the tree.

Fact 2: Tree rings record the seasons.

Given the two facts above, answer the question "How can we learn about the seasons by using a tree?" with the following options: 
- Tasting the tree leaves
 - Something that can be auburn
 - it keeps an organism warm
 - Measuring the height of the tree
 - Help plants grow
 - By looking at the trunk
 - Something that is self-aware
 - Chopping down the tree


 

      By looking at the trunk   