What are the components of an annual ring?

Explanation

### Step-by-Step Solution:

1. **Definition of Annual Ring**:
- An annual ring, also known as a growth ring, is a layer of wood produced by the cambium in a tree trunk. It is formed each year as the tree grows.

2. **Identification of Components**:
- The annual ring consists of two main components:
- **Spring Wood (Early Wood)**: This is the first part of the annual ring that is formed during the spring season when conditions are favorable for growth. The vessels in this layer are typically large and thin-walled, allowing for efficient water transport.
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