Multiple choice general knowledge

The age of a tree can be determined by

  1. Measuring its height

  2. Measuring its diameter

  3. Counting the annual growth rings of its stem

  4. Analyzing its sap

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

Trees produce annual growth rings in their stems due to seasonal variations in cambium activity. In temperate regions, spring wood (lighter, larger cells) and summer/autumn wood (darker, denser cells) form distinct rings. Counting these rings from the center to the bark gives the tree's age. Height and diameter are poor age indicators.