Where from do chemoautotrophs derive energy for synthesis of their food?

Explanation

**Step-by-Step Solution:**

1. **Understanding Chemoautotrophs**: Chemoautotrophs are organisms that can produce their own food. They are a type of autotroph, meaning they can synthesize organic compounds from inorganic sources.

2. **Energy Source**: Chemoautotrophs derive their energy from inorganic chemicals rather than from sunlight (as in the case of photoautotrophs). This is a key characteristic that distinguishes them from other types of organisms.

3. **Types of Inorganic Chemicals**: The inorganic materials that chemoautotrophs utilize for energy include:
- Ammonia (NH₃)
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