Fire produced by oil cannot be controlled by ______.

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks what substance cannot be used to control a fire produced by oil.

2. **Identifying the Fire Type**: Fires caused by oil are classified as Class B fires, which involve flammable liquids.

3. **Common Fire Control Methods**: Typically, fires can be controlled using water, foam, dry chemicals, or other extinguishing agents. However, the effectiveness of these methods can vary depending on the type of fire.

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