One of the most important tools on a farm is the tractor. The tractor does many jobs. Above all, the tractor's big tires and big engine mean it can get most anywhere on the farm. The tractor is great at driving through mud. Also, the tractor pulls heavy loads. It can move carts and wagons filled with vegetables, hay, or dirt. And, of course, the tractor pulls the farm machines to work the fields. For example, the tractor pulls the plow when the farmer plows the dirt. Which text structure does the text use?
Descriptive
Cause - Effect