Question

Give me a short note on coal

Answer 1

Coal is a flammable black hard rock used as a solid fossil fuel. It is mainly made up of 65-95% carbon and also contains hydrogen, sulphur, oxygen and nitrogen. It is a sedimentary rock formed from peat, by the pressure of rocks laid down later on top. The harder forms of coal, such as anthracite, are metamorphic rocks because they were changed by higher temperature and pressure.

Peat, and therefore coal, is formed from the remains of plants which lived millions of years ago in tropical wetlands, such as those of the late Carboniferous period (the Pennsylvanian). A similar substance made from wood by heating it in an airless space is called charcoal.

Coal can be burned for energy or heat. About two-thirds of the coal mined today is burned in power stations to make electricity. Coal is becoming less popular in new power plants as less expensive and less polluting technologies such as natural gas and hydroelectricity take over.

Coal can be roasted (heated in high temperature in a place where there is no oxygen) to produce coke. Coke is even better fuel than coal, and can be used in smelting to reduce metals from their ores.

Answer 2

Hello!!!!


Short note on coal is here..


———————————————-



COAL-An natural resource———————————————————


As, we well know that coal is a natural resource and it need to be preserve soon just not because to conserve for future generations just because it is limited.


It takes millions of year to form one layer of coal and can be destroyed by just simple overusing.




It is made up of all the plant life whih was buried million s of years underground and now considered as a vital part of econmony all around the world whih will b soon into end.



So, rather then time lad we shall less use it so that we can show as to our future generation . Rather then into museums...

———————————————

Hope it helps you.

Thanks..

——————