Fuel must be heated to its ___________ before it starts burning

Explanation

To solve the question, "Fuel must be heated to its ___________ before it starts burning," we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks for a specific term that describes the condition a fuel must reach before it can begin to burn.

2. **Identifying Key Concepts**:
- We know that for any fuel to ignite and start burning, it needs to be heated to a certain temperature.
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