Benzene is an organic chemical compound discovered in 1823 by Faraday.
BENZENE OVERVIEW DIAGRAM
Contaminated soil is the presence of pollutants density above background levels that pose a potential ecological or health risk.
Indigo dying industrial. Synthetic indigo is a substance created from benzene derivatives from petroleum, a fossil fuel that most of us realise is not in limitless supply. The benzene has to be treated chemicals, including hydrogen cyanide, to make it into indigo dye.