Rawhiya

Fossil fuels are natural fuels that formed from the remains of ancient plants and tiny sea organisms that lived millions of years ago. After they died, their remains were buried under layers of mud, sand, and rock. As more layers built up, the weight created high pressure, and the Earth's natural heat warmed the buried organic matter. Over millions of years, heat and pressure caused slow chemical changes, turning the remains into coal, oil, and natural gas. These are called fossil fuels because they come from ancient life. Today, people use fossil fuels to produce electricity, power vehicles, heat homes, and run factories, but they are non-renewable resources because they take millions of years to form and cannot be replaced quickly.