"The bells are made of metals and not of wood." Why?

Explanation

### Step-by-Step Solution:

1. **Understanding the Purpose of Bells**:
- Bells are designed to produce sound, often for signaling or marking time. The quality and duration of the sound are important characteristics.

2. **Material Properties**:
- The materials used to make bells significantly affect their sound production. The two main materials compared here are metals and wood.

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