Fossil fuels, a significant energy source of the world, include coal, oil, and natural gas. They were formed from the remains of ancient plants and animals through a process lasting millions of years. These non-renewable resources are extensively used to generate electricity, power vehicles, and produce various products, critically shaping global energy systems and economies. Understanding fossil fuels encompasses their formation, types, extraction methods, environmental impact, and role in energy transitions. As we strive to address climate change, exploring alternatives and transitioning to sustainable energy sources are essential to mitigate the impact on the planet.