How does the structure of this passage contribute to its purpose? first, pull your vehicle off the road to a safe spot. next, use the wrench to loosen but not remove the lug nuts. then, position the jack under the vehicle and raise the vehicle until the flat tire is off the ground. the cause-and-effect structure demonstrates reasons readers may need to change a tire. the problem and solution structure readers understand how to prevent a flat tire. the sequential structure gives readers ordered steps to take to change a tire. the spatial structure readers picture how to identify a flat tire.