Which of the following statements about Sulfur Dioxide (SO₂) are correct?
- Sulfur dioxide is a colorless gas that dissolves easily in water.
- The primary source of sulfur dioxide emissions is the burning of natural gas for cooking.
- Sulfur dioxide can negatively impact human health when present in concentrations above 1 ppm.
- Sulfur dioxide is mainly produced from agricultural activities.
A1 only
B1, 3
CAll
D2, 4
