wood
Coal is mined. It is already coal as it comes out of the mine; no further processing is required.
Yes coal is a raw material. Raw materials are materials as they are found, and unchanged by a process. Coal is mined, but is used in the same form as it is dug up. Nothing needs to be done to the coal to make it useful, other than transporting it.
A laboratory working with a manufacturer of synthetic diamonds found that the elements involved included carbon, sulphur, iron, calcium, cobalt, nickel, yttrium, zirconium, gladolinium and hafnium. However, their lab report did not identify proprietary materials.
which material used in mattress
production of primary agricultural raw materials, sorting/grading,value addition and processing, quality management, marketing
Coal is mined. It is already coal as it comes out of the mine; no further processing is required.
Raw materials used in processing cement are,Calcareous materials (limestone)Argillaceous materials (clay)GypsumCoal dust.
Yes coal is a raw material. Raw materials are materials as they are found, and unchanged by a process. Coal is mined, but is used in the same form as it is dug up. Nothing needs to be done to the coal to make it useful, other than transporting it.
Mainly oil, sometimes coal
coal is used as a raw material in thermal power stations
Mainly oil, sometimes coal
coal
A coal and heat process that removes sulphur and other impurities without actually burning the coal.
Coal.
gold,dimond,iron,coal
None. Cocoa is itself a crude foodstuff and its products are the result of processing rather than being raw materials.
They use raw material like coal and oil for fuel. The iron sorts like iron and tin, are used to especially making machine parts. Salt is used as an ingredients, and the limestone is used as an important founding element.