Photochemical smog is actually a cause of pollution of

Options

A. Soil
B. Air
C. Noise
D. Water

Answer

### Step-by-Step Solution:

1. **Understanding Photochemical Smog**:
Photochemical smog is a type of air pollution that is formed when sunlight reacts with pollutants such as nitrogen oxides and volatile organic compounds (VOCs). These pollutants are primarily emitted from vehicles and industrial sources.

2. **Components of Photochemical Smog**:
- **Primary Pollutants**: These include nitrogen oxides (NOx) and volatile organic compounds (VOCs) that are directly released into the atmosphere.
- **Secondary Pollutants**: These are formed when primary pollutants react in the presence of sunlight. A key secondary pollutant in photochemical smog is ozone (O3).

3. **Effects of Photochemical Smog**:
Photochemical smog has harmful effects on human health and the environment. It can cause respiratory problems, skin diseases, and other health issues. It also adversely impacts animal life and vegetation.

4. **Identifying the Correct Answer**:
The question asks about the type of pollution caused by photochemical smog. Since photochemical smog is primarily composed of air pollutants and is formed through reactions in the atmosphere, it is classified as a cause of air pollution.

5. **Conclusion**:
Based on the analysis, the correct answer is that photochemical smog is a cause of air pollution.

### Final Answer:
Photochemical smog is actually a cause of pollution of **air**.

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