Our body is a ________________ of electricity.

Explanation

**Step-by-Step Solution:**

1. **Understanding the Composition of the Body:**
- Our body is primarily composed of water, which contains ions. These ions are essential for the conduction of electricity.

2. **Identifying Free Electrons:**
- In addition to ions, our body contains free electrons. Free electrons are electrons that are not bound to any particular atom and can move freely.

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