
Coal
Coal is a fossil fuel that has been used as a primary energy source for centuries. It is composed of carbon, hydrogen, sulfur, and other elements, and is formed from the remains of ancient plants that lived millions of years ago. Coal is extracted from mines and used in a variety of industries, including power generation, manufacturing, and transportation. Despite its widespread use, the extraction and use of coal has also been a source of controversy and debate, with many people concerned about the environmental impact of the industry.