Complex sentence: The Adelaide Airport is centrally located in the electorate, and noise pollution is a prominent local issue, besides the aged care needs of the relatively elderly population − the seat has one of the highest proportions of citizens over the age of 65 in Australia.
Split into simpler sentences: The Adelaide Airport is centrally located in the electorate, and noise pollution is a prominent local issue, besides the aged care needs of the relatively elderly population. The seat has one of the highest proportions of citizens over the age of 65 in Australia.