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Mineral and Fossil-Fuel Conservation
1.       They are non-renewable sources of energy, hence limited in supply
2.       If we keep utilizing them uncontrollably, they will run out one day
3.       The need of the hour is to switch to renewable sources of energy – like solar or geothermal
4.       We can conserve non- renewable sources of energy by using them wisely – only when needed and trying not to waste them eg. Switching off fans and lights when not in use