Multiple choice general knowledge

The age of a tree can be determined by

  1. Measuring its height

  2. Measuring its diameter

  3. Analyzing its sap

  4. Counting the annual growth rings of its stem

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Trees produce annual growth rings in their stems due to seasonal variations in xylem formation. Each ring represents one year of growth, so counting rings gives the tree's age. Measuring height or diameter doesn't work because growth varies by species and environment.