Fuel tanks are containers designed to store fuel for various types of vehicles and machinery, such as cars, airplanes, and boats. They come in different shapes and sizes, depending on the specific requirements of the vehicle. Fuel tanks are typically made from materials like metal or plastic, which can withstand the corrosive nature of fuels. These tanks are essential for safely holding fuel until it is needed for combustion. They often include features like vents to release pressure and fuel gauges to indicate the amount of fuel remaining. Proper maintenance of fuel tanks is crucial to prevent leaks and ensure efficient operation of the vehicle or equipment they serve.