how are iron, copper and bauxite useful to us
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1. COPPER - copper is a good conductor of electricity. therefore it is used in electrical wires , electric motors , generators , etc. Copper is also mixed with gold for making jewellery
2.IRON - iron is most important metallic mineral of the modern industrial world. it is used to manufacture steel which is used in making machines
3.BAUXITE - bauxite is ore of aluminium . it is also used in industries . aluminium is light but hard and a good conductor of electricity. therefore , it is used in making aeroplanes and automobiles
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