Aapka chanel name bhi kuch mining vala rkhiye ....new logo ko milta nhi hai ...mining search krne pr
Sir aap jo abhi exam hone vale hai unke baare me btaiye......ncl , mcl...
Sir regulation to hindi me aa gya hai .....
Coal is extracted from the ground by coal mining, either underground by shaft mining, or at ground level by open pit mining extraction.
Coal is primarily used as a solid fuel to produce electricity and heat through combustion. World coal consumption was about 7.25 billion tonnes in 2010
The price of coal increased from around $30.00 per short ton in 2000 to around $150.00 per short ton as of September 2008.
In early 2015, it was trading near $56/ton.