How is 'petrol' related to petroleum? Name four most important products obtained from petroleum.

Explanation

### Step-by-Step Solution:

1. **Understanding Petroleum**:
- Petroleum is a naturally occurring liquid found beneath the Earth's surface. It is formed from the decomposition of organic matter over millions of years, making it a fossil fuel.

2. **Relationship between Petrol and Petroleum**:
- Petrol is a specific product derived from petroleum. It is obtained through a process called fractional distillation, which separates the different components of petroleum based on their boiling points.

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