What are the effects of `SO_2`

Explanation

### Step-by-Step Solution:

1. **Definition of SO₂**: Sulfur dioxide (SO₂) is a colorless gas with a pungent odor. It is produced by volcanic eruptions and industrial processes, particularly the burning of fossil fuels.

2. **Air Pollution**: SO₂ is a significant contributor to air pollution. It can lead to the formation of fine particulate matter and contribute to smog.

3. **Effects on Plants**: SO₂ can damage plant life by interfering with photosynthesis. It destroys chlorophyll, which is essential for plants to convert sunlight into energy.

...