dendrochronology is the study of

Options

A. Height of a tree
B. Diameter of a tree
C. Age of a tree with the help of annual rings
D. Counting of the number of branches

Answer

**Step-by-Step Solution:**

1. **Understanding Dendrochronology**: Dendrochronology is a scientific method used to date events and environmental changes by studying the growth rings of trees.

2. **Identifying the Options**: The question provides several options regarding what dendrochronology studies:
- Height of a tree
- Diameter of a tree
- Age of a tree with the help of annual rings
- Counting the number of branches

3. **Analyzing Each Option**:
- **Height of a tree**: This is typically measured using tools like a clinometer, not through dendrochronology.
- **Diameter of a tree**: The circumference of a tree is measured to determine its diameter, which is not related to dendrochronology.
- **Age of a tree with the help of annual rings**: This is the primary focus of dendrochronology. By counting the annual rings in a tree's trunk, scientists can determine the age of the tree.
- **Counting the number of branches**: This does not relate to dendrochronology, as it does not provide information about the age of the tree.

4. **Conclusion**: Based on the analysis, the correct answer is that dendrochronology is the study of the age of a tree with the help of annual rings.

**Final Answer**: Dendrochronology is the study of the age of a tree with the help of annual rings.

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