ADVANTAGES and disadvantages
The use of coal has raised controversy over the recent years. There are many advantages and disadvantages to using coal. Coal is believed to be one of the biggest causes of air pollution; however it is also a very important resource and is used to power almost 50% of the energy in Toronto and other location spread across North America.
Technology made from coal
Steel is made from an alloy of iron combined with another metallic element. To combined to metallic elements into one. They need to melt into a liquid. To melt iron and other metals we use coal to heat it up. The consequences of this are relatively the same consequences as using coal for electricity.