Which of the following is not a consequence of acid rain?

Options

A. Damage to plants and trees
B. Damage to buildings and statue
C. Damage to soils
D. Damage to respiratory system

Answer

To determine which of the options is not a consequence of acid rain, we need to analyze the effects of acid rain on the environment and human health.

### Step-by-Step Solution:

1. **Understanding Acid Rain**:
Acid rain is formed when sulfur dioxide (SO₂) and nitrogen oxides (NOₓ) are released into the atmosphere, where they mix with water vapor and oxygen, leading to the formation of sulfuric acid (H₂SO₄) and nitric acid (HNO₃).

2. **Consequences of Acid Rain**:
- **Soil Damage**: Acid rain increases the acidity of the soil, which can lead to a decrease in nutrient availability for plants. This is a known consequence of acid rain.
- **Water Bodies**: Acid rain can lower the pH of lakes and streams, harming aquatic life.
- **Vegetation Damage**: It can harm trees and plants by leaching important nutrients from the soil and directly damaging leaves.
- **Human Health**: While acid rain itself does not directly damage the respiratory system, the pollutants that cause acid rain (like sulfur dioxide and nitrogen oxides) can lead to respiratory issues when inhaled.

3. **Analyzing the Options**:
- **Option 1**: Damage to soil - This is a consequence of acid rain.
- **Option 2**: Damage to respiratory system - This is indirectly related to the pollutants that cause acid rain but not a direct consequence of acid rain itself.
- **Option 3**: Oxides of nitrogen and sulfur released - This is a cause of acid rain, not a consequence.
- **Option 4**: Increase in acidity of water bodies - This is a consequence of acid rain.

4. **Conclusion**:
The option that is not a consequence of acid rain is the **damage to the respiratory system**, as it is more related to the pollutants that cause acid rain rather than the acid rain itself.

### Final Answer:
**Damage to respiratory system** is not a consequence of acid rain.