List two advantages of the use of unleaded petrol in automobiles as fuel.

Explanation

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

1. **Identify the Fuel Type**: The question asks about unleaded petrol, which is a type of fuel used in automobiles.

2. **First Advantage - Reduced Pollution**: One of the primary advantages of using unleaded petrol is that it does not release lead compounds into the atmosphere. Traditional petrol contains lead additives, which, when combusted, release lead into the exhaust fumes. By using unleaded petrol, we significantly reduce the amount of lead pollution in the environment.

3. **Second Advantage - Health Benefits**: The second advantage of unleaded petrol is that it does not emit harmful compounds that can lead to health issues. The absence of lead and other toxic substances in the exhaust helps in preventing respiratory diseases such as bronchitis and asthma, thereby contributing to better public health.

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