Coal is formed by the process of

Options

A. evaporation
B. distillation
C. carbonisation
D. vaporisation

Answer

**Step-by-Step Text Solution:**

1. **Understanding Coal**: Coal is primarily a form of carbon that is used for various applications, including burning for energy.

2. **Historical Context**: Approximately 300 million years ago, the Earth's surface was covered with dense forests. These forests consisted of a large amount of vegetation.

3. **Natural Processes**: Over time, natural calamities such as cyclones and floods caused this vegetation to be buried under layers of soil.

4. **Conditions for Formation**: As more soil accumulated over the buried vegetation, it experienced high pressure and temperature conditions.

5. **Transformation Process**: The dead vegetation underwent a slow transformation process due to these conditions, gradually converting into coal.

6. **Carbonization**: This slow process of converting dead vegetation into coal is specifically known as carbonization.

7. **Fossil Fuel Classification**: Since coal is formed from the remains of dead vegetation that has been buried for millions of years, it is classified as a fossil fuel.

**Final Answer**: Coal is formed by the process of carbonization, which involves the transformation of dead vegetation under high pressure and temperature over millions of years.

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