Justify that the use of solar energy should be increased rather than coal and mineral.
Why are coal and mineral fuel called non renewable source of energy?
"Coal is called fossil fuel" Justify it.
What is coal ? Write the uses of coal.
Which of the following are non renewable sources of energy? mineral oil, hydroelectricity, tidal energy and coal. SLC 2072
What is the worst quality of coal?
Which elements are found in coal?
What is the economic importance of coal?