How coal is formed

Coal is formed as a result of the transformation of layers created by the accumulation of plant matter in swampy areas. These layers were buried deep underground due to the accumulation of various sediments on top of them and tectonic movements. When exposed to increasing heat and pressure, this buried plant matter undergoes physical and chemical changes, transforming into coal. This process, which takes place over millions of years, classifies coals into types based on their organic maturity: Lignite, Subbituminous, Bituminous, and Anthracite.
Lignite and, to some extent, Subbituminous coals are generally soft, brittle, and have a dull appearance. The main characteristic of these types of coal is that they contain relatively high moisture and have low carbon content. Anthracite and bituminous coals, on the other hand, are generally hard and have a lustrous appearance. They have relatively low moisture content and high carbon content. Geologically, the ages of coals range from 400 million years to 15 million years. Generally, older coals are of higher quality.

Why Is Coal Important in Daily Life Around the World?

:EndCoal is the oldest, most reliable, and cleanest fossil fuel available, and it can be obtained at low cost. Widespread: Coal is produced in more than 50 countries worldwide. Unlike other fossil fuels (such as oil and natural gas), coal reserves are not concentrated in specific regions but are widely distributed across the globe. It is the safest fossil fuel in terms of safe :Kuse, storage, and transportation. In terms of reliably supplying electricity at competitive prices for industrial and other sectors, the widespread availability of coal worldwide and its production by many countries ensures supply reliability.