What type of combustion is represented by :
ignition of a cracker ?

Explanation

**Step-by-Step Solution:**

1. **Understanding Combustion**: Combustion is a chemical reaction that occurs when a substance (usually a fuel) reacts with oxygen to release energy in the form of heat and light.

2. **Types of Combustion**: There are different types of combustion, including:
- Complete Combustion
- Incomplete Combustion
- Rapid Combustion
...