Acid rain occur due to atmosphere pollution of:

Options

A. `SO_(2)`
B. `NH_(3)`
C. `CO_(2)`
D. `N_(2)O`

Answer

To determine the cause of acid rain from the given options, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Acid Rain**:
- Acid rain refers to any form of precipitation (like rain, snow, fog, etc.) that contains acidic components. The primary acids involved are sulfuric acid (H₂SO₄) and nitric acid (HNO₃).

2. **Identifying Pollutants**:
- The question lists four potential pollutants: SO₂ (sulfur dioxide), NH₃ (ammonia), CO₂ (carbon dioxide), and N₂O (nitrous oxide). We need to analyze which of these contributes to the formation of acid rain.

3. **Role of Sulfur Dioxide (SO₂)**:
- Sulfur dioxide (SO₂) is known to be a significant contributor to acid rain. When SO₂ is released into the atmosphere, it can react with oxygen (O₂) to form sulfur trioxide (SO₃), which then reacts with water (H₂O) to produce sulfuric acid (H₂SO₄).

4. **Role of Nitrogen Oxides (NOₓ)**:
- Nitrogen oxides (NOₓ), which include compounds like NO and NO₂, can also contribute to acid rain. For example, nitrogen dioxide (NO₂) can react with water to form nitric acid (HNO₃).

5. **Other Options**:
- Ammonia (NH₃) and carbon dioxide (CO₂) do not significantly contribute to acid rain. While CO₂ can form carbonic acid, it is not responsible for the strong acidity associated with acid rain.

6. **Conclusion**:
- Based on the analysis, the primary atmospheric pollutant responsible for acid rain is sulfur dioxide (SO₂). Therefore, the correct answer is SO₂.

### Final Answer:
Acid rain occurs due to atmospheric pollution of **SO₂ (sulfur dioxide)**.

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