Understand that the combustion of fuels serves as a major source of atmospheric pollutants.
Recall that most fuels, including coal, contain carbon and/or hydrogen, and may also contain some sulfur.
Identify the specific gases released into the atmosphere during fuel combustion, including carbon dioxide, water vapour, carbon monoxide, sulfur dioxide, and oxides of nitrogen.
Recognise that solid particles and unburned hydrocarbons may also be released, which form particulates in the atmosphere.
Describe the mechanisms by which carbon monoxide, soot (carbon particles), sulfur dioxide, and oxides of nitrogen are produced during the burning of fuels.
Predict the specific products of combustion for a given fuel when provided with appropriate information regarding the fuel's chemical composition and the conditions of its use.