Because it was cold.
Began.
Not sure if this will answer your question, but I'll give it a shot. It's less about the fact that is is coal and more about the fact that coal gives off heat. When coal was first being used as a heat source, it was cheaper than wood and there was a lot of it. So really the origin of the energy is in the heat that the coal generates when on fire and less about the coal itself.
how has coal mining changed over time
Zheng He was the one who had coal. He and his father, the emperor of China, and his uncle ,Samuel had created coal together on a farm in China.
Coal is formed from plants, which turned into peat, then lignite, then coal.
commmpical bias
I believe it was during the Permian and Pennsylvanian eras.
# WHAT IS THE MOST COMMON FORM OF COAL IN Pennsylvania?
anthracite coal
Coal forms from peat, and peat forms in bogs. There is not enough organic material in the arctic to form coal.
is a coal called Anthikal
Lignite is the softest form of coal.
Coal is a form of carbon.
anthracite coal is the metamorphic form of bituminous coal which is the sedimentary form. in other words it has been heated under pressure.
anthracite coal is the metamorphic form of bituminous coal which is the sedimentary form. in other words it has been heated under pressure.
Coal stores energy from the sun in the form of chemical energy