Fill in the following blanks with suitable words :
A fuel must be heated to its …………………. before it starts burning.

Explanation

To fill in the blank in the statement "A fuel must be heated to its …………………. before it starts burning," we need to identify the correct term that describes the minimum temperature required for a fuel to ignite and start burning.

### Step-by-Step Solution:

1. **Understand the Concept of Ignition Temperature**:
- Ignition temperature is defined as the lowest temperature at which a substance (in this case, a fuel) will ignite and start to burn.

2. **Identify the Blank**:
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