Why is coal considered a fossil fuel?

Answer 1

because it takes millions of years to form, it forms from the remains of living things

Answer 2

Coal is considered a fossil fuel because it is formed from the remains of ancient plants that were buried and underwent a process of transformation over millions of years. These plants absorbed energy from the sun through photosynthesis, and when they died and decayed, they were transformed into coal through heat and pressure. This process makes coal a carbon-rich, energy-dense resource that is used as a fuel source.