Forest fire is an example of

Options

A. slow combustion
B. rapid combustion
C. spontaneous combustion
D. explosion

Answer

**Step-by-Step Solution:**

1. **Understanding Forest Fire**: A forest fire is an uncontrolled fire that burns in forests or grasslands. It can have various causes, and understanding these causes is essential to classify the type of forest fire.

2. **Identifying Causes of Forest Fire**: Forest fires can be caused by two main factors:
- **Natural Causes**: These include phenomena such as lightning strikes that ignite the forest.
- **Human Causes**: These are fires that are started by human activities, either accidentally or intentionally.

3. **Defining Spontaneous Combustion**: Spontaneous combustion is a process where a material ignites without an external heat source. This can occur when certain conditions are met, such as the accumulation of heat within a material.

4. **Linking Forest Fire to Spontaneous Combustion**: When a forest fire occurs naturally due to lightning, it is an example of spontaneous combustion because it ignites without any external heat being applied.

5. **Conclusion**: Therefore, we can conclude that a forest fire is an example of spontaneous combustion, particularly when it occurs due to natural causes like lightning.

**Final Answer**: Forest fire is an example of spontaneous combustion.

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