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Earlier discussion
1 older comment kept for context.
CHUKA MIKE
Sulfur dioxide or sulphur dioxide is the chemical compound with the formula SO ₂. It is a toxic gas responsible for the smell of burnt matches. It is released naturally by volcanic activity and is produced as a by-product of copper extraction and the burning of fossil fuels contaminated with sulfur compounds.
\( SO_{2} \)\( NO_{2} \) and \( CO_{2} \) dissolves in Rain water to form Acid Rain