After using the yum install command, you will be prompted for the computer's root password. Type in the root password and press 'Enter'. You will not see the password as you type. The terminal will start giving information about the application, and end with Is this ok [y/N]:.
While some of the compounds in the dirt and rock are the same in most coal, the carbon is combined here and there with hydrogen, oxygen, sulphur, nitrogen, phosporus and just about every other common element in small quantities. Imagine an extremely large net where the knots are carbon atoms.
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 and also dead plants animals and may contain human coal turns hard and shiny after hundreds and thousands of years .