Discuss how can we reduce noise pollution.

Explanation

**Step-by-Step Solution:**

1. **Understanding Noise Pollution**:
- Noise pollution refers to unwanted or harmful sounds that can disturb the environment and human activities. It is often characterized by sounds that are unpleasant or uncomfortable to listen to.

2. **Turning Off Machines**:
- One effective way to reduce noise pollution is to turn off machines and appliances when they are not in use. This helps to minimize unnecessary noise in our surroundings.

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