describe the formation of coal
Answers
Answer:
coal is formed from plant remain got buried under the earth crust. over a long period of time. the chemical and physical properties were changed through geological action
Coal was formed from plants and animal got buried deep under the earth crust over a large period of time the chemical and physical properties of this plants remains were changed throw geographical actions that leads to the certain of these soil material, the process of conversion of the plants material into coal . The formation of coal depend on the quality of the coal , As you know that there are four variety of coal depending upon the occurrence of coal and formation of coal, the types of coal depend on the temperature and pressure condition and the time period of formation there are four different varieties of coal, they are as follows ------»
★ PEAT :------ It is imperia quality of the coal it is soft brown substance having 30% of carbon it is earliest stage during the formation of coal.
★ LIGNITE :----- It contains 38% of carbon it is used for making on other types of fuels as well as used for electricity production, Example as :----- used for electric power generation, (NTPC)......
★ BITUMINOUS :----- It has 68% of carbon it is used for making another types of fuel as well as used for electricity production example as fuel and coke.
★ ANTHRACITE :----- It has a hard coal and it contains 90% of carbon it is quite hard, it is best quality of coal.
The variety of coal depend upon the formation of coal from each other in terms of their -----›
Content a volatile material
Percentage of carbon
Moisture
Other (Impurities) element