<span><span>Burning of fossil fuels emits sulphur dioxide. <span><span>S (in coal) + O2SO2 </span></span></span><span> Sulphur dioxide reaches the atmosphere, it oxidizes to first form a sulphate ion. <span><span> 2 SO2 + O2 2 SO3</span></span></span><span>
The sulphate ion joins with hydrigen atoms in the air and becomes sulphuric acid. This then falls back down to earth as "acid rain" <span><span> SO3 + H2O H2SO<span>4
Hope this at least helped a little c:</span></span></span></span></span>
