Fossil fuels such as coal and crude oil are the common sources of energy in industries and homes. We can cut down fuel requirement by using improved burners, furnaces and engines that burn the fuels more efficiently. Enormous amounts of crude oil are wasted through careless handling and evaporation at oil wells, during transportation and storage and at refineries. In many homes, fuel is wasted unnecessarily. All these wastage should be reduced.
More efficient and improve methods should be used in mining and during the extraction of metals from their ores.
