Where do Fossil Fules come from?

Fossil fules are the remains of once living things. Coal formed from the remap.ins of dead plants buried in ancient swamps and forests. Natural gas and oil formed from the remain of tiny ocean plants and animals. These sea creatures died and fell to the bottom of the ocean. There their bodies were buried by layers of sand and mud. As more and more layers covered these remain, pressure on them built up. Eventually, the layers of sediment turned into sedimentary rock. Over millions of years, the plant and animal remains changed into oil and natural gas.