Minerals containing iron are called ferrous minerals, e.g., iron ore, manganese, nickel cobalt. Minerals which do not contain iron are called non-ferrous minerals, e.g., bauxite, lead and gold. (b) Conventional sources of energy are the non renewable sources of energy. ... They are cleaner sources of energy.
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Minerals containing iron are called ferrous minerals, e.g., iron ore, manganese, nickel cobalt. Minerals which do not contain iron are called non-ferrous minerals, e.g., bauxite, lead and gold. (b) Conventional sources of energy are the non renewable sources of energy. ... They are cleaner sources of energy.
The manin sources are the only the natural resources which are extracted from the earth ..hmm