GEOLOGY

Detailed explanation-1: -Coal, oil, and natural gas are examples of fossil fuels. Coal is a material usually found in sedimentary rock deposits where rock and dead plant and animal matter are piled up in layers. More than 50 percent of a piece of coal’s weight must be from fossilized plants.

Detailed explanation-2: -The precursor to coal is peat. Peat is a soft, organic material consisting of partly decayed plant and mineral matter. When peat is placed under high pressure and heat, it undergoes physical and chemical changes (coalification) to become coal.

Detailed explanation-3: -Coal is an inflammable organic substance, composed mainly of hydrocarbons, found in the form of sedimentary rocks and capable of being used as fuel to supply heat or light or both. It is formed when sub merged vegetation remains under great pressure for a considerably long time.

Detailed explanation-4: -Coal is a fossil fuel that is formed from the remains of plants that lived millions of years ago. The organic material in coal comes from the plants that were buried and preserved over time, undergoing chemical and physical changes as they were subjected to heat, pressure, and the absence of oxygen.

Detailed explanation-5: -Petroleum, also called crude oil, is a fossil fuel. Like coal and natural gas, petroleum was formed from the remains of ancient marine organisms, such as plants, algae, and bacteria.