Besides coal and petroleum, which among the following is also a fossil fuel?

Options

A. Nitrogen
B. Natural gas
C. Hydrogen
D. Oxygen

Answer

To answer the question "Besides coal and petroleum, which among the following is also a fossil fuel?", we can follow these steps:

### Step 1: Understand what fossil fuels are
Fossil fuels are natural substances formed from the decomposed remains of ancient plants and animals. They are primarily found in the Earth's crust and are created over millions of years under high pressure and temperature conditions.

**Hint:** Remember that fossil fuels are derived from ancient organic matter and require specific geological conditions to form.

### Step 2: Identify examples of fossil fuels
The most common fossil fuels include:
- Coal
- Petroleum (oil)
- Natural Gas

These substances are rich in carbon and hydrogen, which are the key elements that allow them to produce energy when burned.

**Hint:** Think about the substances that are commonly used for energy production and are derived from ancient biological materials.

### Step 3: Analyze the options provided
In the context of the question, we need to look for an option that is not coal or petroleum but is still classified as a fossil fuel. Since we know that natural gas is also a fossil fuel, we can identify it as the correct answer.

**Hint:** Look for options that are commonly associated with energy production and check if they are derived from organic matter.

### Step 4: Conclusion
Based on the information and analysis, the answer to the question is that **natural gas** is also a fossil fuel besides coal and petroleum.

**Final Answer:** Natural gas is a fossil fuel.

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