Gasoline, kerosene, diesel fuel, fuel oil, etc.
Gasoline is used as fuel for internal combustion engines of cars, naphtha is fuel for tractors and raw materials for petrochemical industries, kerosene is fuel for jet aircraft, gas oil (diesel fuel) is fuel for engines of motor ships, diesel locomotives and heavy trucks, fuel oil is fuel for thermal power plants and boiler houses.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.