Here's how it happens:
1. Sulfur dioxide (SO₂) and sulfur trioxide (SO₃) are released into the atmosphere, primarily from burning fossil fuels.
2. In the atmosphere, SO₂ reacts with oxygen and water to form sulfuric acid. The reaction can be summarized as:
* SO₂ + H₂O + ½ O₂ → H₂SO₄
Sulfuric acid is a strong acid and contributes significantly to acid rain, which can have harmful effects on the environment, including:
* Damage to forests and crops
* Acidification of lakes and rivers, harming aquatic life
* Corrosion of buildings and infrastructure
* Respiratory problems in humans
