Acid rain is due to pollution by

Options

A. `CO_(2)`
B. `SO_(2) and NO_(2)`
C. Dust particles
D. Automobiles

Answer

### Step-by-Step Text Solution:

1. **Understanding Acid Rain**: Acid rain refers to any form of precipitation (rain, snow, fog) that has a lower pH than normal, making it acidic. This phenomenon can have harmful effects on the environment, including damage to forests, lakes, and buildings.

2. **Identifying Pollutants**: The primary pollutants responsible for acid rain are sulfur dioxide (SO2) and nitrogen dioxide (NO2). These gases are released into the atmosphere primarily through human activities, particularly from industrial processes and the burning of fossil fuels.

3. **Chemical Reactions**: Once released into the atmosphere, SO2 and NO2 react with water vapor and other chemicals to form sulfuric acid (H2SO4) and nitric acid (HNO3). These acids are then carried by precipitation, resulting in acid rain.

4. **Sources of SO2 and NO2**:
- **Sulfur Dioxide (SO2)**: This gas is mainly produced from the combustion of fossil fuels in power plants and industrial facilities.
- **Nitrogen Dioxide (NO2)**: This gas is primarily emitted from vehicles, power plants, and industrial facilities.

5. **Effects of Acid Rain**: Acid rain can lead to severe environmental issues, including the corrosion of buildings (like the Taj Mahal), damage to aquatic ecosystems, and harm to plant life.

6. **Conclusion**: The correct answer to the question "Acid rain is due to pollution by" is **SO2 (sulfur dioxide) and NO2 (nitrogen dioxide)**.