Which of the following sentences describes a conversion from chemical energy to thermal energy?

Options

A. Food is digested and used to regulate body temprature.
B. Charcoal is burnt in a barbecue pit.
C. Coal is burnt to produce steam
D. All of the above

Explanation

To determine which sentence describes a conversion from chemical energy to thermal energy, we can analyze the options provided.

### Step-by-Step Solution:

1. **Understanding Chemical Energy**:
- Chemical energy is the energy stored in the bonds of chemical compounds, like food or fuel. When these bonds are broken, energy is released.

2. **Analyzing Option 1**:
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