Ways to Prevent Obesity-Portion Control

Cars are not all the same. They come in different sizes and colors and to some degree different shapes. They use different amounts of fuel and have different sized fuel tanks. A small four-cylinder car uses less petrol (gasoline) per mile than a Sports Utility Vehicle and has a smaller tank to fill up when you get to the fuel station. How much fuel is used up is also, obviously a factor of how the car is driven and how far it travels.Whilst it sounds obvious nobody is surprised that a vehicle, which uses less fuel, will need lees fuel put in to fill it up. Most people are quite happy that they are saving money at the pump. You would not keep filling the tank once it is full, as the fuel will just overflow.So the question arises

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