Define. Pollutants

Answer

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

1. **Definition of Pollutants**: Pollutants are substances that cause pollution in the environment. They can be in various forms and can lead to different types of pollution.

2. **Types of Pollution**: Pollutants can cause several types of pollution, including:
- **Air Pollution**: This occurs when harmful substances are released into the atmosphere.
- **Water Pollution**: This happens when harmful chemicals or waste are discharged into water bodies.
- **Noise Pollution**: This is caused by excessive noise that can harm human health and the environment.

3. **Characteristics of Pollutants**: Pollutants are typically unwanted substances that can have detrimental effects on the environment and living organisms.

4. **Examples of Pollutants**:
- **Air Pollutants**: Gaseous substances like carbon dioxide (CO2) and chlorofluorocarbons (CFCs) are examples of air pollutants.
- **Water Pollutants**: Chemicals released from factories that contaminate water bodies are examples of water pollutants.
- **Noise Pollutants**: Loud noises from machinery or traffic that can lead to health issues, such as hearing loss or stress, are examples of noise pollutants.

5. **Conclusion**: In summary, pollutants are harmful substances that contribute to various forms of pollution, affecting air, water, and noise levels in the environment.

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