Coal is formed deep inside the surface of the Earth, it is obtained through the process of____________.

Options

A. mining
B. drilling
C. carbonization
D. None of them

Answer

To answer the question "Coal is formed deep inside the surface of the Earth, it is obtained through the process of____________," we can follow these steps:

### Step 1: Understand the Formation of Coal
Coal is formed from the remains of ancient plants that have been subjected to heat and pressure over millions of years. This process transforms the organic material into coal.

### Step 2: Identify the Process
The specific process through which coal is formed is known as **carbonization**. This process involves the gradual conversion of plant material into carbon-rich coal through heat and pressure.

### Step 3: Relate to Extraction
While carbonization refers to the formation of coal, the extraction of coal from the Earth is typically done through mining. However, the question specifically asks about the formation process.

### Final Answer
Coal is formed deep inside the surface of the Earth, it is obtained through the process of **carbonization**.

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