Explain the following:
Small holes are provided at the bottom of the chimney in an oil lamp.

Explanation

To explain why small holes are provided at the bottom of the chimney in an oil lamp, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Function of the Chimney**:
- The chimney in an oil lamp serves to direct the flow of air and smoke. It helps in maintaining a steady flame by allowing the necessary gases to circulate.

2. **Role of Oxygen in Combustion**:
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