EVERYDAY SCIENCE

Detailed explanation-1: -Coal is fossil fuel or fuel that comes from the remains of prehistoric plants or animals. The formation of coal occurs over millions of years via a process known as carbonation. In this process, dead vegetation is converted into carbon-rich coal under very high temperature and pressure.

Detailed explanation-2: -Coal comes from the energy stored by land plants from swamps that lived hundreds of millions of years ago. For millions of years, a layer of dead plants at the bottom of the swamps was covered by layers of water and dirt, trapping the energy of the dead plants.

Detailed explanation-3: -Coal is a combustible sedimentary rock formed from ancient vegetation which has been consolidated between other rock strata and transformed by the combined effects of microbial action, pressure and heat over a considerable time period. This process is commonly called ‘coalification’.

Detailed explanation-4: -Coal is formed when dead plant matter submerged in swamp environments is subjected to the geological forces of heat and pressure over hundreds of millions of years. Over time, the plant matter transforms from moist, low-carbon peat, to coal, an energy-and carbon-dense black or brownish-black sedimentary rock.

Detailed explanation-5: -Before the dinosaurs, many giant plants died in swamps. Over millions of years, the plants were buried under water and dirt. Heat and pressure turned the dead plants into coal. Coal is used primarily in the United States to generate electricity.