Trucks are used to transport people or things, they use fuel known as diesel. Trucks have a large frame, motor, and wheels. There are many types of truck bodies. There is a panel truck that delivers food, platform trucks that has a frame to keep barrels and boxes from falling out. Van trucks have long bodies, which is used to transport furniture.
Dump trucks have heavy bodies to carry heavy loads.
Tankers carry liquids. Tractor trailers that have a trailer that carries lots of material. Some other trucks are used for services, such as fire trucks, phone trucks, garbage trucks, and mail trucks. Greenwillow Books, 1980. In this Caldecott Award book a large tractor-trailer, which has the words trucking written on the side, is shown driving through the city.