What is the correct meaning of the word catapult?

What point is the author trying to make by comparing the travel times of the first transcontinental railroad and the first transcontinental flight?

How much time has elapsed from the very beginning of "the memior of the conquistador bernal diaz del castillo" to the end? a. castillo's whole life b. a quarter of an hour c. a few weeks d. a decade

What are the effects of parallel structure in this excerpt? check all that apply. it adds emphasis to the verbs that describe the british government’s oppression. it uses repetition to add power to the colonists’ growing list of grievances. it stresses jefferson’s list of grievances, giving the reader a sense of the amount of time the colonists have been oppressed. it emphasizes that all of these acts were carried out by the same person.